chore: update dependencies and fix calendar event hooks

Bump tailwindcss 4.2.0, lucide-react 0.575.0, @typescript-eslint 8.56.0,
tailwind-merge 3.5.0, and patch-level updates across 48 transitive packages.
Fix missing useCallback dependency in calendar event card.

stores/email-store.ts

@@ -1060,8 +1060,10 @@ export const useEmailStore = create<EmailStore>((set, get) => ({
 
       const result = await client.getEmails(jmapMailboxId, accountId, emailsPerPage, 0);
 
+      const currentEmails = get().emails;
+
       // Check if there are new emails by comparing the first email ID
-      const currentFirstEmailId = get().emails[0]?.id;
+      const currentFirstEmailId = currentEmails[0]?.id;
       const newFirstEmailId = result.emails[0]?.id;
 
       // If the first email changed, we have a new email - trigger notification
@@ -1069,11 +1071,26 @@ export const useEmailStore = create<EmailStore>((set, get) => ({
         get().handleNewEmailNotification(result.emails[0]);
       }
 
-      set({
-        emails: result.emails,
-        hasMoreEmails: result.hasMore,
-        totalEmails: result.total
-      });
+      // Skip state update if emails haven't actually changed to avoid
+      // unnecessary re-renders that cause a visible list flicker
+      const hasChanged =
+        currentEmails.length !== result.emails.length ||
+        result.emails.some((email, i) => {
+          const curr = currentEmails[i];
+          return (
+            curr.id !== email.id ||
+            curr.threadId !== email.threadId ||
+            JSON.stringify(curr.keywords) !== JSON.stringify(email.keywords)
+          );
+        });
+
+      if (hasChanged) {
+        set({
+          emails: result.emails,
+          hasMoreEmails: result.hasMore,
+          totalEmails: result.total,
+        });
+      }
     } catch (error) {
       console.error('Failed to refresh current mailbox:', error);
       // Don't set error state for background refreshes to avoid disrupting the UI