style(launcher): layout and Tailwind class adjustments

+layout.svelte: add lg:min-h-8/12 and max-h-screen to main content area.
launcher_background_sync.svelte: reposition sync monitor panel (bottom-15,
left-2, z-10 — was bottom-20, left-4, z-9999).
launcher_menu.svelte: reorder Tailwind classes for readability, no change
to applied styles.

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

src/routes/events/[event_id]/(launcher)/launcher/+layout.svelte

@@ -601,8 +601,10 @@ $effect(() => {
     class="
         static
         m-auto
-        mb-16 h-full w-full
-        max-w-7xl border-x
+        mb-16
+        lg:min-h-8/12 h-full max-h-screen
+        w-full max-w-7xl
+        border-x
         border-gray-200
         transition-all sm:mb-12
         dark:border-gray-600