refactor(image-preview): remove longTap prop

Author: dolymood

src/components/image-preview/image-preview.vue

@@ -77,15 +77,9 @@
         type: Number,
         default: 400
       },
-      longTapSave: {
-        type: Boolean,
-        default: false
-      },
       preventDefault: {
         type: Boolean,
-        default() {
-          return !this.longTapSave
-        }
+        default: true
       }
     },
     data() {
@@ -97,7 +91,6 @@
             left: true,
             right: true
           },
-          click: !this.longTapSave,
           useTransition: !isAndroid,
           probeType: 3,
           preventDefault: this.preventDefault