增加拖拽插件

ruoyi-ui/package.json

@@ -74,6 +74,7 @@
     "less-loader": "^7.2.1",
     "lodash": "^4.17.21",
     "mathjs": "^11.7.0",
+    "mitt": "^3.0.1",
     "moment": "^2.29.1",
     "mpegts.js": "^1.7.3",
     "normalize.css": "7.0.0",
@@ -104,11 +105,10 @@
     "vue-slick-carousel": "^1.0.6",
     "vue-splitpane": "1.0.4",
     "vue-video-player": "^5.0.2",
-    "vuedraggable": "2.24.3",
+    "vuedraggable": "^2.24.3",
     "vuescroll": "^4.18.1",
     "vuex": "3.6.0",
-    "zrender": "^5.4.4",
-    "mitt": "^3.0.1"
+    "zrender": "^5.4.4"
   },
   "devDependencies": {
     "@vue/cli-plugin-babel": "4.4.6",
@@ -154,4 +154,4 @@
     "> 1%",
     "last 2 versions"
   ]
-}
+}