Removed old rules from eslint

Tried hand at testing by fixing the spec files with import. However, still many errors and given up now.

overlord/package.json

@@ -57,6 +57,7 @@
     "eslint-config-prettier": "^6.12.0",
     "eslint-plugin-import": "^2.22.1",
     "eslint-plugin-prettier": "^3.1.4",
+    "husky": "^4.3.0",
     "jasmine-core": "~3.5.0",
     "jasmine-spec-reporter": "~5.0.0",
     "karma": "^5.1.0",
@@ -64,11 +65,26 @@
     "karma-coverage-istanbul-reporter": "~3.0.2",
     "karma-jasmine": "~3.3.0",
     "karma-jasmine-html-reporter": "^1.5.0",
+    "lint-staged": "^10.4.0",
     "mathjs": "^7.3.0",
     "prettier": "^2.1.2",
     "protractor": "~7.0.0",
     "standard-version": "^8.0.2",
     "ts-node": "^8.10.2",
     "typescript": "3.9.6"
+  },
+  "husky": {
+    "hooks": {
+      "pre-commit": "lint-staged",
+      "pre-push": "ng build --prod"
+    }
+  },
+  "lint-staged": {
+    "./src/*.{js,jsx,ts,tsx}": [
+      "npx prettier --write"
+    ],
+    "./src/*.{js,jsx,ts,tsx, css, html}": [
+      "eslint --cache --fix"
+    ]
   }
 }