check selfdm

Signed-off-by: bggRGjQaUbCoE <githubaccount56556@proton.me>

lib/pages/danmaku/controller.dart

@@ -55,11 +55,12 @@ class PlDanmakuController {
           if (mergeDanmaku) {
             final count = counts[element.content];
             if (count != 1) {
-              element.attr = count!;
-            } else {
-              element.clearAttr();
+              element.count = count!;
             }
           }
+          if (plPlayerController.isLogin) {
+            element.isSelf = element.midHash == plPlayerController.midHash;
+          }
           int pos = element.progress ~/ 100; //每0.1秒存储一次
           (dmSegMap[pos] ??= []).add(element);
         }