feat: add panel title headings to all UserSettings panels

packages/web/src/components/modals/settingsPanels/ConnectionsPanel.tsx

@@ -1,5 +1,10 @@
 import { ConnectedInstances } from '../ConnectedInstances';
 
 export function ConnectionsPanel() {
-  return <ConnectedInstances />;
+  return (
+    <div className="space-y-5">
+      <h2 className="text-lg font-semibold text-txt-primary mb-6">Connections</h2>
+      <ConnectedInstances />
+    </div>
+  );
 }