🎨(frontend) harmonize room info sidepanel display with meeting dialog

Remove protocol prefix from room URLs in the information sidepanel to
match the syntax used in the meeting dialog.

This creates consistent URL display formatting across both UI components
for better user experience.

src/frontend/src/features/rooms/livekit/components/Info.tsx

@@ -76,7 +76,7 @@ export const Info = () => {
           })}
         >
           <Text as="p" variant="xsNote" wrap="pretty">
-            {roomUrl}
+            {roomUrl.replace(/^https?:\/\//, '')}
           </Text>
           {isTelephonyReadyForUse && (
             <>