feat(admin): 后台页面显示版权标识

src/App.vue

@@ -22,6 +22,7 @@ appStore.initTheme()
 <template>
   <ConfigGlobal :size="currentSize">
     <RouterView :class="greyMode ? `${prefixCls}-grey-mode` : ''" />
+    <footer class="app-copyright">© FruitShorts</footer>
   </ConfigGlobal>
 </template>
 
@@ -48,4 +49,15 @@ body {
 .@{prefix-cls}-grey-mode {
   filter: grayscale(100%);
 }
+
+.app-copyright {
+  position: fixed;
+  right: 20px;
+  bottom: 10px;
+  z-index: 5;
+  font-size: 12px;
+  line-height: 1;
+  color: var(--el-text-color-secondary, #909399);
+  pointer-events: none;
+}
 </style>