style: FA→Lucide migration — events misc, badges, leads, hosted_files; variant-* fixes

- Batch-migrated 10 files via migrate_fa_to_lucide.py (53+18+10+1+4+2+1+1+6+4 FA instances)
  - events/ae_comp__events_menu_opts.svelte (53)
  - events/ae_comp__event_file_obj_tbl.svelte (18)
  - events/ae_comp__event_presentation_obj_li.svelte (10)
  - events/ae_comp__event_session_obj_tbl.svelte (1)
  - badges/print_list/+page.svelte (2), badges/templates/+page.svelte (1)
  - leads/ae_tab__manage.svelte (4)
  - hosted_files/+page.svelte (1), hold_video_util.svelte (6), video_util/+page.svelte (4)
- events/[event_id]/+page.svelte: converted JS icon strings to Lucide component refs
  (Presentation, Plane, IdCard, Contact) — rendered via <mod.icon size="2rem" />
- +page.svelte: hover:variant-outline-warning → hover:preset-outlined-warning (×2)
- migrate_fa_to_lucide.py: added 18 new icon mappings
  (ArrowLeft/Right, Ban, Broom→Trash2, calendar-alt, Database, DoorOpen, Download,
   exchange-alt, file-image, lock, magic→Sparkles, print, sticky-note, sync, tag,
   trash, user-ninja/tie→UserRound, video)

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

src/routes/hosted_files/+page.svelte

@@ -9,6 +9,7 @@
     import type { key_val } from '$lib/stores/ae_stores';
 
     import Element_manage_hosted_file_li_wrap from '$lib/elements/element_manage_hosted_file_li_all.svelte';
+    import { Video } from 'lucide-svelte';
 
     let { data } = $props();
 
@@ -110,7 +111,7 @@
 <p>Clip, scale, re-encode videos files (mp4).</p>
 
 <a href="hosted_files/video_util" class="btn preset-filled-primary-500">
-    <span class="fas fa-video mx-1"></span>
+    <Video size="1em" class="mx-1" />
     Video Utilities
 </a>