fix: Nvidia-Label ohne g4f.space-Hinweis

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

wwwroot/index.html

@@ -212,7 +212,7 @@
           <optgroup label="Pollinations" id="pollinationsOptgroup">
             <option value="" disabled>Wird geladen...</option>
           </optgroup>
-          <optgroup label="Nvidia (via g4f.space)" id="nvidiaOptgroup">
+          <optgroup label="Nvidia" id="nvidiaOptgroup">
             <option value="" disabled>Wird geladen...</option>
           </optgroup>
         </select>