feat(room): add copy link functionality with options for room and guest links

src/components/RoomCard.jsx

@@ -126,7 +126,7 @@ export default function RoomCard({ room, onDelete }) {
             <Copy size={14} />
           </button>
           {showCopyMenu && (
-            <div className="absolute bottom-full right-0 mb-1 bg-th-surface border border-th-border rounded-lg shadow-lg z-50 min-w-[150px] py-1">
+            <div className="absolute bottom-full right-0 mb-2 bg-th-surface border border-th-border rounded-lg shadow-lg z-50 min-w-[150px] py-1">
               <button
                 onClick={(e) => { e.stopPropagation(); copyToClipboard(`${window.location.origin}/rooms/${room.uid}`); }}
                 className="w-full flex items-center gap-2 px-3 py-2 text-xs text-th-text hover:bg-th-accent/10 transition-colors"