feat: 添加侧边栏折叠功能

frontend/src/business/components/common/components/MsAsideContainer.vue

 <template>
-
-  <el-aside :width="width" class="ms-aside-container">
+  <el-aside :width="width" class="ms-aside-container"
+            :style="{'margin-left': asideHidden ? '0' : '-' + width}">
+    <div class="hiddenBottom" @click="asideHidden = !asideHidden" :style="{'left': width}">
+      <i v-if="asideHidden" class="el-icon-arrow-left"/>
+      <i v-if="!asideHidden" class="el-icon-arrow-right"/>
+    </div>
     <slot></slot>
   </el-aside>
-
 </template>
 
 <script>
@@ -14,6 +17,11 @@
           type: String,
           default: '300px'
         }
+      },
+      data() {
+        return {
+          asideHidden: true
+        }
       }
     }
 </script>
@@ -27,6 +35,31 @@
     box-sizing: border-box;
     background-color: #FFF;
     height: calc(100vh - 80px);
+    position: relative;
+    overflow: inherit;
+  }
+
+  .hiddenBottom {
+    z-index: 199;
+    width: 8px;
+    height: 50px;
+    top: calc((100vh - 80px)/2);
+    line-height: 50px;
+    border-radius: 0 15px 15px 0;
+    background-color: #acb7c1;
+    display: inline-block;
+    position: absolute;
+    cursor: pointer;
+    opacity: 0.2;
+    font-size: 2px;
+  }
+
+  .hiddenBottom i {
+    margin-left: -2px;
+  }
+
+  .hiddenBottom:hover {
+    opacity: 0.5;
   }
 
 </style>