tweaks (#1142)

* opt: unused layout

* mod: semantics

* opt: DanmakuMsg type

* opt: avoid cast

* opt: unnecessary_lambdas

* opt: use isEven

* opt: logger

* opt: invalid common page

* tweak

* opt: unify DynController

lib/models_new/live/live_danmaku/danmaku_msg.dart

@@ -0,0 +1,22 @@
+import 'package:PiliPlus/models_new/live/live_danmaku/live_emote.dart';
+
+class DanmakuMsg {
+  late String name;
+  late Object uid;
+  late String text;
+  Map<String, BaseEmote>? emots;
+  BaseEmote? uemote;
+
+  DanmakuMsg();
+
+  DanmakuMsg.fromPrefetch(Map<String, dynamic> obj) {
+    final user = obj['user'];
+    name = user['base']['name'];
+    uid = user['uid'];
+    text = obj['text'];
+    emots = (obj['emots'] as Map<String, dynamic>?)?.map((k, v) => MapEntry(k, BaseEmote.fromJson(v)));
+    if ((obj['emoticon']?['emoticon_unique'] as String?)?.isNotEmpty == true) {
+      uemote = BaseEmote.fromJson(obj['emoticon']);
+    }
+  }
+}