feat(scheduled): Send now button on scheduled/delayed messages

Adds a 'Send now' action to the scheduled-send view (both the toolbar and the
inline banner) so a queued message — whether explicitly scheduled or held by the
undo-send delay — can be sent immediately instead of only cancel/reschedule/edit.
Reuses the existing reschedule path (reschedules the submission to now), so no
new JMAP plumbing. Toolbar 'Cancel send' demoted to ghost so 'Send now' is the
single primary action. i18n added across locales.

components/email/email-viewer.tsx

@@ -3515,7 +3515,17 @@ export function EmailViewer({
         )}
         {isScheduled && canCancelScheduled && (
           <>
-            <Button variant="default" size="sm" onClick={onCancelScheduled} className="sm:flex sm:h-8" title={t('cancel_scheduled_send')}>
+            <Button
+              variant="default"
+              size="sm"
+              onClick={() => onRescheduleScheduled?.(new Date(Date.now() + 1000).toISOString())}
+              className="sm:flex sm:h-8"
+              title={t('send_now')}
+            >
+              <Send className="w-4 h-4" />
+              {showToolbarLabels && <span className="hidden sm:inline text-sm">{t('send_now')}</span>}
+            </Button>
+            <Button variant="ghost" size="sm" onClick={onCancelScheduled} className="sm:flex sm:h-8" title={t('cancel_scheduled_send')}>
               <X className="w-4 h-4" />
               <span className="hidden sm:inline text-sm">{t('cancel_scheduled_send')}</span>
             </Button>
@@ -5029,6 +5039,7 @@ export function EmailViewer({
               <div className="flex items-center gap-2">
                 {canCancelScheduled && (
                   <>
+                    <Button size="sm" variant="default" onClick={() => onRescheduleScheduled?.(new Date(Date.now() + 1000).toISOString())}>{t('send_now')}</Button>
                     <Button size="sm" variant="outline" onClick={onCancelScheduled}>{t('cancel_scheduled_send')}</Button>
                     <Button
                       size="sm"

locales/cs/common.json

@@ -565,7 +565,8 @@
       "add_to_contacts": "Přidat do kontaktů",
       "copied": "Zkopírováno!",
       "copy_failed": "Kopírování se nezdařilo"
-    }
+    },
+    "send_now": "Send now"
   },
   "email_composer": {
     "read_receipt_on": "Vyžádáno potvrzení o přečtení (kliknutím vypnete)",

locales/da/common.json

@@ -565,7 +565,8 @@
       "add_to_contacts": "Tilføj til kontakter",
       "copied": "Kopieret!",
       "copy_failed": "Kunne ikke kopiere"
-    }
+    },
+    "send_now": "Send now"
   },
   "email_composer": {
     "read_receipt_on": "Læsekvittering anmodet (klik for at deaktivere)",

locales/de/common.json

@@ -565,7 +565,8 @@
       "add_to_contacts": "Zu Kontakten hinzufügen",
       "copied": "Kopiert!",
       "copy_failed": "Kopieren fehlgeschlagen"
-    }
+    },
+    "send_now": "Send now"
   },
   "email_composer": {
     "read_receipt_on": "Lesebestätigung angefordert (klicken zum Deaktivieren)",

locales/en/common.json

@@ -565,7 +565,8 @@
       "add_to_contacts": "Add to contacts",
       "copied": "Copied!",
       "copy_failed": "Failed to copy"
-    }
+    },
+    "send_now": "Send now"
   },
   "email_composer": {
     "read_receipt_on": "Read receipt requested (click to disable)",

locales/es/common.json

@@ -565,7 +565,8 @@
       "add_to_contacts": "Añadir a contactos",
       "copied": "¡Copiado!",
       "copy_failed": "Error al copiar"
-    }
+    },
+    "send_now": "Send now"
   },
   "email_composer": {
     "read_receipt_on": "Confirmación de lectura solicitada (haz clic para desactivar)",

locales/fr/common.json

@@ -565,7 +565,8 @@
       "add_to_contacts": "Ajouter aux contacts",
       "copied": "Copié !",
       "copy_failed": "Échec de la copie"
-    }
+    },
+    "send_now": "Send now"
   },
   "email_composer": {
     "read_receipt_on": "Accusé de lecture demandé (cliquez pour désactiver)",

locales/hu/common.json

@@ -565,7 +565,8 @@
       "add_to_contacts": "Hozzáadás a névjegyekhez",
       "copied": "Másolva!",
       "copy_failed": "A másolás nem sikerült"
-    }
+    },
+    "send_now": "Send now"
   },
   "email_composer": {
     "read_receipt_on": "Olvasási visszaigazolás kérve (kattints a letiltáshoz)",

locales/it/common.json

@@ -565,7 +565,8 @@
       "add_to_contacts": "Aggiungi ai contatti",
       "copied": "Copiato!",
       "copy_failed": "Copia non riuscita"
-    }
+    },
+    "send_now": "Send now"
   },
   "email_composer": {
     "read_receipt_on": "Conferma di lettura richiesta (clicca per disattivare)",

locales/ja/common.json

@@ -565,7 +565,8 @@
       "add_to_contacts": "連絡先に追加",
       "copied": "コピーしました！",
       "copy_failed": "コピーに失敗しました"
-    }
+    },
+    "send_now": "Send now"
   },
   "email_composer": {
     "read_receipt_on": "開封確認を要求中（クリックで無効化）",

locales/ko/common.json

@@ -565,7 +565,8 @@
       "add_to_contacts": "연락처에 추가",
       "copied": "복사됨!",
       "copy_failed": "복사하지 못했습니다"
-    }
+    },
+    "send_now": "Send now"
   },
   "email_composer": {
     "read_receipt_on": "읽음 확인 요청됨 (클릭하여 해제)",

locales/lv/common.json

@@ -565,7 +565,8 @@
       "add_to_contacts": "Pievienot kontaktpersonām",
       "copied": "Nokopēts!",
       "copy_failed": "Neizdevās nokopēt"
-    }
+    },
+    "send_now": "Send now"
   },
   "email_composer": {
     "read_receipt_on": "Pieprasīts lasīšanas apstiprinājums (noklikšķiniet, lai atspējotu)",

locales/nl/common.json

@@ -565,7 +565,8 @@
       "add_to_contacts": "Aan contacten toevoegen",
       "copied": "Gekopieerd!",
       "copy_failed": "Kopiëren mislukt"
-    }
+    },
+    "send_now": "Send now"
   },
   "email_composer": {
     "read_receipt_on": "Leesbevestiging aangevraagd (klik om uit te schakelen)",

locales/pl/common.json

@@ -565,7 +565,8 @@
       "add_to_contacts": "Dodaj do kontaktów",
       "copied": "Skopiowano!",
       "copy_failed": "Nie udało się skopiować"
-    }
+    },
+    "send_now": "Send now"
   },
   "email_composer": {
     "read_receipt_on": "Zażądano potwierdzenia przeczytania (kliknij, aby wyłączyć)",

locales/pt/common.json

@@ -565,7 +565,8 @@
       "add_to_contacts": "Adicionar aos contatos",
       "copied": "Copiado!",
       "copy_failed": "Falha ao copiar"
-    }
+    },
+    "send_now": "Send now"
   },
   "email_composer": {
     "read_receipt_on": "Confirmação de leitura solicitada (clique para desativar)",

locales/ro/common.json

@@ -565,7 +565,8 @@
       "add_to_contacts": "Adaugă la contacte",
       "copied": "Copiat!",
       "copy_failed": "Copierea a eșuat"
-    }
+    },
+    "send_now": "Send now"
   },
   "email_composer": {
     "read_receipt_on": "Solicitare confirmare de citire (faceți clic pentru a dezactiva)",

locales/ru/common.json

@@ -565,7 +565,8 @@
       "add_to_contacts": "Добавить в контакты",
       "copied": "Скопировано!",
       "copy_failed": "Не удалось скопировать"
-    }
+    },
+    "send_now": "Send now"
   },
   "email_composer": {
     "read_receipt_on": "Запрошено уведомление о прочтении (нажмите, чтобы отключить)",

locales/tr/common.json

@@ -565,7 +565,8 @@
       "add_to_contacts": "Kişilere ekle",
       "copied": "Kopyalandı!",
       "copy_failed": "Kopyalanamadı"
-    }
+    },
+    "send_now": "Send now"
   },
   "email_composer": {
     "read_receipt_on": "Okundu bilgisi istendi (devre dışı bırakmak için tıklayın)",

locales/uk/common.json

@@ -565,7 +565,8 @@
       "add_to_contacts": "Додати до контактів",
       "copied": "Скопійовано!",
       "copy_failed": "Не вдалося скопіювати"
-    }
+    },
+    "send_now": "Send now"
   },
   "email_composer": {
     "read_receipt_on": "Запитано сповіщення про прочитання (натисніть, щоб вимкнути)",

locales/zh/common.json

@@ -565,7 +565,8 @@
       "add_to_contacts": "添加到联系人",
       "copied": "已复制！",
       "copy_failed": "复制失败"
-    }
+    },
+    "send_now": "Send now"
   },
   "email_composer": {
     "read_receipt_on": "已请求已读回执（点击以关闭）",