add indicator icon

packages/artplayer/src/style/bottom.scss

@@ -77,16 +77,21 @@
 
                     .art-progress-indicator {
                         display: none;
+                        align-items: center;
+                        justify-content: center;
                         position: absolute;
                         z-index: 40;
-                        top: -5px;
-                        left: -6.5px;
-                        width: 13px;
-                        height: 13px;
                         border-radius: 50%;
 
+                        .art-icon {
+                            width: 100%;
+                            height: 100%;
+                            pointer-events: none;
+                            user-select: none;
+                        }
+
                         &.art-show-indicator {
-                            display: block;
+                            display: flex;
                         }
                     }
 
@@ -114,7 +119,7 @@
                         height: 100%;
                         .art-progress-indicator,
                         .art-progress-tip {
-                            display: block;
+                            display: flex;
                         }
                     }
                 }