fix(Wikipedia): prevent loading spinner overlay during download

The LoadingSpinner component defaults to fullscreen mode which renders
a Semantic UI dimmer overlay with "Loading" text. This was overlapping
with the blue "Downloading Wikipedia" status banner.

Changed to use fullscreen={false} iconOnly to render just the spinner
icon inline within the banner.

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

Author: 2 people

admin/inertia/components/WikipediaSelector.tsx

@@ -48,7 +48,7 @@ const WikipediaSelector: React.FC<WikipediaSelectorProps> = ({
       {/* Downloading status message */}
       {isDownloading && (
         <div className="mb-4 p-3 bg-blue-50 border border-blue-200 rounded-lg flex items-center gap-2">
-          <LoadingSpinner className='size-5' />
+          <LoadingSpinner fullscreen={false} iconOnly className="size-5" />
           <span className="text-sm text-blue-700">
             Downloading Wikipedia... This may take a while for larger packages.
           </span>