班次课程表二级菜单加图标以及添加占位页面

frontend/src/layout/components/AppMain.vue

@@ -6,17 +6,15 @@
       </keep-alive>
     </transition>
     <iframe-toggle />
-    <copyright />
   </section>
 </template>
 
 <script>
-import copyright from "./Copyright/index"
 import iframeToggle from "./IframeToggle/index"
 
 export default {
   name: 'AppMain',
-  components: { iframeToggle, copyright },
+  components: { iframeToggle },
   computed: {
     cachedViews() {
       return this.$store.state.tagsView.cachedViews
@@ -64,10 +62,6 @@ export default {
   }
 }
 
-.app-main:has(.copyright) {
-  padding-bottom: 36px;
-}
-
 .hasTagsView {
   .app-main {
     /* tags-view 高度 34px，AppMain 在 flex 列中由父容器约束高度 */