chore(npm): cleanup dependencies, move to Dart Sass

UI/WebServerResources/package.json

@@ -20,18 +20,15 @@
   "devDependencies": {
     "autoprefixer": "^9.8.5",
     "breakpoint-sass": ">=2.4.2",
-    "csswring": ">=3.0.0",
     "grunt": "^1.3.0",
     "grunt-contrib-cssmin": ">=1.0.0",
-    "grunt-contrib-jshint": ">=0.11.2",
+    "grunt-contrib-jshint": "^3.0.0",
     "grunt-contrib-uglify": "^5.0.0",
     "grunt-contrib-watch": ">=0.5.3",
-    "grunt-cssnano": "^2.1.0",
     "grunt-ng-annotate": "^4.0.0",
     "grunt-postcss": ">=0.6.0",
     "grunt-sass": "^3.1.0",
-    "kss": "^3.0.1",
-    "node-sass": "^4.14.1",
+    "sass": "^1.29.0",
     "time-grunt": "latest"
   },
   "browserslist": [