fix: suppress native context menu in production builds

src/frontend-shared/App.tsx

@@ -3,6 +3,14 @@ import AppShell from './components/layout/AppShell'
 import { connectionsStore, initConnectionsListener } from './stores/connections'
 import { editorStore } from './stores/editor'
 
+// Suppress the webview's native context menu (with "Inspect Element" etc.) in
+// production builds. In dev we keep it so we can inspect the DOM. Component-
+// level context menus call e.preventDefault() themselves and render their own
+// menu via the ContextMenu component, so they keep working either way.
+function preventNativeContextMenu(e: MouseEvent) {
+	e.preventDefault()
+}
+
 export default function App() {
 	let cleanup: (() => void) | undefined
 
@@ -14,12 +22,19 @@ export default function App() {
 		connectionsStore.setOnConnectionLost((connectionId) => {
 			editorStore.rejectPendingQueriesForConnection(connectionId)
 		})
+
+		if (import.meta.env.PROD) {
+			document.addEventListener('contextmenu', preventNativeContextMenu)
+		}
 	})
 
 	onCleanup(() => {
 		cleanup?.()
 		connectionsStore.setOnTransactionLost(null)
 		connectionsStore.setOnConnectionLost(null)
+		if (import.meta.env.PROD) {
+			document.removeEventListener('contextmenu', preventNativeContextMenu)
+		}
 	})
 
 	return <AppShell />