Refactor: Fix warnings

Author: rarestoma

angular.json

@@ -16,6 +16,7 @@
             "main": "src/main.ts",
             "tsConfig": "src/tsconfig.app.json",
             "polyfills": "src/polyfills.ts",
+            "allowedCommonJsDependencies": ["nouislider", "rellax"],
             "assets": [
               "src/assets",
               "src/favicon.ico"
@@ -136,4 +137,4 @@
   "cli": {
     "analytics": false
   }
-}
+}