feat: update to Angular 13

angular.json

@@ -161,7 +161,7 @@
       }
     },
     "ngx-admin-demo-e2e": {
-      "root": "",
+      "root": "e2e",
       "sourceRoot": "",
       "projectType": "application",
       "architect": {

package.json

@@ -77,6 +77,11 @@
   },
   "devDependencies": {
     "@angular-devkit/build-angular": "^13.3.10",
+    "@angular-eslint/builder": "13.5.0",
+    "@angular-eslint/eslint-plugin": "13.5.0",
+    "@angular-eslint/eslint-plugin-template": "13.5.0",
+    "@angular-eslint/schematics": "13.5.0",
+    "@angular-eslint/template-parser": "13.5.0",
     "@angular/cli": "^13.3.10",
     "@angular/compiler-cli": "^13.3.12",
     "@angular/language-service": "13.3.12",
@@ -87,8 +92,11 @@
     "@types/jasminewd2": "2.0.3",
     "@types/leaflet": "1.2.3",
     "@types/node": "^12.12.70",
+    "@typescript-eslint/eslint-plugin": "5.27.1",
+    "@typescript-eslint/parser": "5.27.1",
     "codelyzer": "^6.0.2",
     "conventional-changelog-cli": "1.3.4",
+    "eslint": "^8.17.0",
     "husky": "0.13.3",
     "jasmine-core": "~3.6.0",
     "jasmine-spec-reporter": "~5.0.0",