Return function instead of wrapping in annoymous callback

lib/pages/login_page.dart

@@ -60,7 +60,7 @@ class LoginPage extends HookConsumerWidget {
       appBar: Appbar(
         leading: IconButton(
           icon: Icon(Icons.arrow_back),
-          onPressed: () => Navigator.of(context).pop(),
+          onPressed: Navigator.of(context).pop,
         ),
       ),
       body: AlertDialog(
@@ -125,7 +125,7 @@ class LoginPage extends HookConsumerWidget {
         ),
         actions: [
           TextButton(
-            onPressed: hasError.value ? null : () => tryLogin(),
+            onPressed: hasError.value ? null : tryLogin,
             child: Text("Sign In"),
           ),
         ],