refactor(ui): remove disabled GitHub button from toolbar

src/lib/ToolBar.svelte

@@ -8,7 +8,6 @@
     forward: '/icons/rightarrow.png',
     play: '/icons/speaker.png',
     search: '/icons/internet.png',
-    globe: '/icons/github-white.svg',
     computer: '/icons/computer.png',
   };
 
@@ -87,12 +86,6 @@
     <span>Settings</span>
   </a>
 
-  <div class="toolbar-separator"></div>
-
-  <button class="toolbar-button" disabled title="GitHub">
-    <img src={icons.globe} alt="Globe" />
-    <span>GitHub</span>
-  </button>
 </div>
 
 <style>