replaced uglifyjs to terser, updated autoprefixer & fixed npm audits

plugins/jquery-ui/package.json

@@ -1,26 +1,31 @@
 {
-  "_from": "jquery-ui-dist@^1.12.1",
+  "_args": [
+    [
+      "jquery-ui-dist@1.12.1",
+      "/Users/rejack/Projekte/GitHub/REJack/AdminLTE"
+    ]
+  ],
+  "_from": "jquery-ui-dist@1.12.1",
   "_id": "jquery-ui-dist@1.12.1",
   "_inBundle": false,
   "_integrity": "sha1-XAgV08xvkP9fqvWyaKbiO0ypBPo=",
   "_location": "/jquery-ui-dist",
   "_phantomChildren": {},
   "_requested": {
-    "type": "range",
+    "type": "version",
     "registry": true,
-    "raw": "jquery-ui-dist@^1.12.1",
+    "raw": "jquery-ui-dist@1.12.1",
     "name": "jquery-ui-dist",
     "escapedName": "jquery-ui-dist",
-    "rawSpec": "^1.12.1",
+    "rawSpec": "1.12.1",
     "saveSpec": null,
-    "fetchSpec": "^1.12.1"
+    "fetchSpec": "1.12.1"
   },
   "_requiredBy": [
     "/"
   ],
   "_resolved": "https://registry.npmjs.org/jquery-ui-dist/-/jquery-ui-dist-1.12.1.tgz",
-  "_shasum": "5c0815d3cc6f90ff5faaf5b268a6e23b4ca904fa",
-  "_spec": "jquery-ui-dist@^1.12.1",
+  "_spec": "1.12.1",
   "_where": "/Users/rejack/Projekte/GitHub/REJack/AdminLTE",
   "author": {
     "name": "jQuery Foundation and other contributors",
@@ -29,9 +34,7 @@
   "bugs": {
     "url": "https://bugs.jqueryui.com/"
   },
-  "bundleDependencies": false,
   "dependencies": {},
-  "deprecated": false,
   "description": "A curated set of user interface interactions, effects, widgets, and themes built on top of the jQuery JavaScript Library.",
   "devDependencies": {
     "commitplease": "2.3.0",