修复菜单、字典、部门、角色添加上级必选，导致不能添加顶级菜单、字典，部门和Sword一样添加备注字段

src/views/system/dept.vue

@@ -93,7 +93,7 @@
                 label: "title"
               },
               rules: [{
-                required: true,
+                required: false,
                 message: "请选择上级部门",
                 trigger: "blur"
               }]
@@ -108,6 +108,17 @@
                 message: "请输入排序",
                 trigger: "blur"
               }]
+            },
+
+            {
+              label: "备注",
+              prop: "remark",
+              span: 24,
+              rules: [{
+                required: false,
+                message: "请输入备注",
+                trigger: "blur"
+              }]
             }
           ]
         },

src/views/system/dict.vue

@@ -93,7 +93,7 @@
                 label: "title"
               },
               rules: [{
-                required: true,
+                required: false,
                 message: "请选择上级字典",
                 trigger: "blur"
               }]

src/views/system/menu.vue

@@ -106,7 +106,7 @@
                 label: "title"
               },
               rules: [{
-                required: true,
+                required: false,
                 message: "请选择上级菜单",
                 trigger: "blur"
               }]

src/views/system/role.vue

@@ -123,7 +123,7 @@
                 label: "title"
               },
               rules: [{
-                required: true,
+                required: false,
                 message: "请选择上级角色",
                 trigger: "blur"
               }]