fix(uploader): taro h5 3.4.x style cover

src/packages/__VUE/uploader/index.scss

@@ -24,10 +24,10 @@
     position: absolute !important;
     top: 0;
     left: 0;
-    width: 100%;
-    height: 100%;
+    width: 100% !important;
+    height: 100% !important;
     overflow: hidden;
-    cursor: pointer;
+    cursor: pointer !important;
     opacity: 0;
     &:disabled {
       cursor: not-allowed;