chore: migrate all FA icons to Lucide (@lucide/svelte)

- Replaced all active FontAwesome <span class="fas fa-*"> icons with
  Lucide components across 145 files (excluding /idaa/ which is intentional)
- Fixed merge script bug: consolidated lucide-svelte imports into @lucide/svelte
- Replaced dynamic toggle patterns (fa-toggle-on/off) with ToggleRight/ToggleLeft
- Replaced fa-eye/fa-eye-slash with Eye/EyeOff
- Replaced fa-bug/fa-bug-slash with Bug/BugOff
- Replaced fa-sync fa-spin with RefreshCw + animate-spin
- Replaced fa-microchip with Cpu
- Fixed {@const} placement in element_manage_event_file_li.svelte
- Removed obsolete CSS hover rules for .unlock_icon/.lock_icon
- svelte-check: 0 errors, 0 warnings

src/routes/journals/ae_comp__journal_entry_header.svelte

@@ -4,20 +4,7 @@
      * Standardized Journal Entry Header.
      * Manages name, sync status, and triggers the modular config.
      */
-    import {
-        Save,
-        Eye,
-        Pencil,
-        Fingerprint,
-        LockKeyhole,
-        LockKeyholeOpen,
-        Settings,
-        ChevronLeft,
-        CircleCheck,
-        CircleX,
-        LoaderCircle,
-        RefreshCw
-    } from 'lucide-svelte';
+    import { ChevronLeft, CircleCheck, CircleX, Eye, Fingerprint, LoaderCircle, LockKeyhole, LockKeyholeOpen, Pencil, RefreshCw, Save, Settings } from '@lucide/svelte';
     import { ae_util } from '$lib/ae_utils/ae_utils';
     import {
         journals_loc,