feat(ui): polish email modal, search loading, and volume tables

Move profile email change into a modal with Alpine focus/close handling,
show a loading overlay during command-palette navigation, and adjust
volumes/config-diff grids plus related service/storage UI. Cover with
feature tests for search, profile, storage, and domains.

tests/Feature/BackupSearchTest.php

@@ -60,6 +60,7 @@ it('renders frontend-only application backup search data for volume names and fr
         ->assertSee('Target A–Z')
         ->assertSee('filterOpen')
         ->assertSee('sortOpen')
+        ->assertDontSee('class="font-mono text-xs">daily', false)
         ->assertDontSee('backup-type-filter-trigger', false)
         ->assertDontSee('backup-sort-trigger', false);
 });