feat: improve visualization of tags

Previously tags where very much focused on color coding email and less about
adding additional information. They were also visualized in different ways in
different locations.

This commit gets rid of all "Color-coding" references, aligns visualization of
the tags across the whole project and tries to improve user experience of using
tags in general.

A search box is shown in the tagging control so the user can quickly search for
a tag if they have a huge (more than 10) amount of tags.

locales/ro/common.json

@@ -325,13 +325,13 @@
     "view_contact": "Vizualizare contact",
     "message_details": "Detalii mesaj",
     "more_reply_options": "Mai multe opțiuni de răspuns",
-    "set_color": "Setați eticheta",
+    "set_tag": "Setați eticheta",
     "tag": "Etichetă",
     "more_actions": "Alte acțiuni",
     "previous": "Anterior",
     "next": "Următorul",
     "move_to": "Mergi la...",
-    "remove_color": "Eliminați eticheta",
+    "remove_tag": "Eliminați eticheta",
     "more_count": "+{count} mai multe",
     "characters_count": "{count} caractere",
     "quick_reply_placeholder": "Scrie un răspuns rapid...",
@@ -425,17 +425,6 @@
       "message_id": "IDul mesajelor",
       "list_info": "Informații despre listă"
     },
-    "color_tag": {
-      "title": "Etichetă de culoare",
-      "red": "Roșu",
-      "orange": "Portocaliu",
-      "yellow": "Galben",
-      "green": "Verde",
-      "blue": "Albastru",
-      "purple": "Violet",
-      "pink": "Roz",
-      "none": "Niciunul"
-    },
     "tooltips": {
       "reply": "Răspunde (r)",
       "reply_all": "Răspunde tuturor (a)",
@@ -2033,8 +2022,7 @@
     "delete": "Șterge",
     "mark_as_spam": "Raportează spamul",
     "not_spam": "Nu este spam",
-    "color_tag": "Etichetă",
-    "remove_color": "Eliminați eticheta",
+    "tag": "Etichetă",
     "items_selected": "{count} e-mailuri selectate",
     "edit_draft": "Editează schița",
     "cancel_scheduled_send": "Anulează trimiterea",