🐛(component): 修复avatar组件样式错乱

package/component/src/component/avatar/index.less

@@ -15,7 +15,6 @@
   color: #fff;
   white-space: nowrap;
   text-align: center;
-  background: #ccc;
   width: 32px;
   height: 32px;
   line-height: 32px;
@@ -45,3 +44,13 @@
   margin-left: -10px;
   display: inline-block;
 }
+
+.layui-avatar {
+  & > img {
+    width: 100%;
+    height: 100%;
+    background: #ccc;
+    display: block;
+    object-fit: cover;
+  }
+}

package/document-component/src/components/LayContributor.vue

@@ -95,7 +95,7 @@ fetchContributors();
   display: inline-block;
 }
 
-.contributor img {
+.contributor span {
   margin: 5px;
 }