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/events/ae_comp__event_session_obj_tbl.svelte

@@ -21,7 +21,7 @@
 
     // import { liveQuery } from "dexie";
     import { ae_util } from '$lib/ae_utils/ae_utils';
-    import { ListOrdered } from 'lucide-svelte';
+    import { ListOrdered } from '@lucide/svelte';
     // Imports - events specific
     // import { events_loc, events_sess, events_slct, events_trigger, events_trig_kv } from '$lib/stores/ae_events_stores';
     // import { db_events } from "$lib/db_events";