Updated node-sass and sass-loader

frontend/package.json

@@ -28,10 +28,10 @@
     "messageformat-loader": "^0.8.1",
     "mini-css-extract-plugin": "^0.9.0",
     "moment": "^2.24.0",
-    "node-sass": "^4.13.1",
+    "node-sass": "^6.0.1",
     "nodemon": "^2.0.2",
     "numeral": "^2.0.6",
-    "sass-loader": "^8.0.2",
+    "sass-loader": "10.2.0",
     "style-loader": "^1.1.3",
     "tabler-ui": "git+https://github.com/tabler/tabler.git#00f78ad823311bc3ad974ac3e5b0126198f0a813",
     "underscore": "^1.12.1",