feat(app): 完善播放协议搜索与空状态

test/account/mine_account_entry_test.dart

@@ -61,6 +61,22 @@ void main() {
     expect(find.byKey(const Key('mine-account-devices')), findsOneWidget);
     expect(find.byKey(const Key('mine-account-export')), findsOneWidget);
     expect(find.byKey(const Key('mine-account-deactivate')), findsOneWidget);
+    expect(find.byKey(const Key('settings-notices')), findsNothing);
+    final profileTop = tester
+        .getTopLeft(find.byKey(const Key('mine-account-profile')))
+        .dy;
+    final devicesTop = tester
+        .getTopLeft(find.byKey(const Key('mine-account-devices')))
+        .dy;
+    final exportTop = tester
+        .getTopLeft(find.byKey(const Key('mine-account-export')))
+        .dy;
+    final deactivateTop = tester
+        .getTopLeft(find.byKey(const Key('mine-account-deactivate')))
+        .dy;
+    expect(devicesTop, greaterThan(profileTop));
+    expect(exportTop, greaterThan(devicesTop));
+    expect(deactivateTop, greaterThan(exportTop));
   });
 }