Removing unused class

Signed-off-by: Alex Andreev <alex.andreev.email@gmail.com>

src/renderer/components/layout/topbar.module.css

@@ -44,6 +44,3 @@
   display: flex;
   height: 100%;
 }
-
-.extensionItem {
-}

src/renderer/components/layout/topbar.tsx

@@ -44,7 +44,7 @@ export const TopBar = observer(({ label, children, ...rest }: Props) => {
           }
 
           return (
-            <div className={styles.extensionItem} key={index}>
+            <div key={index}>
               {registration.components.Item}
             </div>
           );