Revert "upgrade: bump dependency to adapt to Flutter 3.29" and "chore: fix conflict between dart:js_interop and json_serializable"

This reverts commit 95637b5 and afd041d.

Research suggests that the best way to resolve the web compilation issue is to keep the original JS package, even though it is deprecated.

Author: w568w

lib/util/js/js_web.dart

@@ -15,12 +15,10 @@
  *     along with this program.  If not, see <https://www.gnu.org/licenses/>.
  */
 
-// fixme: json_serializable conflicts with @JS() annotation in [dart:js_interop]. (https://github.com/google/json_serializable.dart/issues/1391, https://github.com/google/json_serializable.dart/issues/1480)
-// As a workaround, we use the dart:_js_annotations library directly. It should be replaced with [dart:js_interop] when the issue is resolved.
-// ignore: IMPORT_INTERNAL_LIBRARY
-import 'dart:_js_annotations' as js;
+// ignore: deprecated_member_use
+import 'package:js/js.dart';
 
-@js.JS()
+@JS('window.eval')
 external dynamic eval(dynamic arg);
 
 String evaluate(String jsCode) {

pubspec.lock

@@ -1062,7 +1062,7 @@ packages:
     source: hosted
     version: "1.0.5"
   js:
-    dependency: transitive
+    dependency: "direct main"
     description:
       name: js
       sha256: "53385261521cc4a0c4658fd0ad07a7d14591cf8fc33abbceae306ddb974888dc"

pubspec.yaml

@@ -90,6 +90,7 @@ dependencies:
   lunar: ^1.2.20
   flutter_fgbg: ^0.7.0
   lazy_load_indexed_stack: ^1.0.0
+  js: ^0.7.2
   nil: ^1.1.1
   flex_color_picker: ^3.2.0
   material_color_generator: ^1.1.0