chore: Update danmuku plugin configuration handling and improve performance

packages/artplayer-plugin-danmuku/src/style.less

@@ -297,6 +297,19 @@
     }
 }
 
+[data-danmuku-emitter='false'] {
+    .apd-emitter {
+        display: none !important;
+    }
+
+    .art-controls-center {
+        .artplayer-plugin-danmuku {
+            justify-content: flex-end;
+            gap: 20px;
+        }
+    }
+}
+
 [data-danmuku-theme='light'] > .artplayer-plugin-danmuku {
     .apd-icon {
         fill: #333;