chore: update to Angular 15 (#782)

Co-authored-by: Mihail Goloborodov <[email protected]>

Author: msgoloborodov

package.json

@@ -20,12 +20,12 @@
   },
   "private": true,
   "dependencies": {
-    "@angular/common": "14.2.2",
-    "@angular/compiler": "14.2.2",
-    "@angular/core": "14.2.2",
-    "@angular/forms": "14.2.2",
-    "@angular/platform-browser": "14.2.2",
-    "@angular/platform-browser-dynamic": "14.2.2",
+    "@angular/common": "15.0.4",
+    "@angular/compiler": "15.0.4",
+    "@angular/core": "15.0.4",
+    "@angular/forms": "15.0.4",
+    "@angular/platform-browser": "15.0.4",
+    "@angular/platform-browser-dynamic": "15.0.4",
     "@uirouter/angular": "^10.0.0",
     "@uirouter/core": "6.0.8",
     "@uirouter/rx": "1.0.0",
@@ -38,10 +38,10 @@
     "zone.js": "~0.11.4"
   },
   "devDependencies": {
-    "@angular-devkit/build-angular": "^14.2.3",
-    "@angular/animations": "14.2.2",
-    "@angular/cli": "^14.2.3",
-    "@angular/compiler-cli": "14.2.2",
+    "@angular-devkit/build-angular": "^15.0.4",
+    "@angular/animations": "15.0.4",
+    "@angular/cli": "^15.0.4",
+    "@angular/compiler-cli": "15.0.4",
     "@types/jasmine": "~3.10.2",
     "@uirouter/cypress-runner": "^2.0.0",
     "fibers": "5.0.0",
@@ -50,4 +50,4 @@
     "tslint": "6.1.3",
     "typescript": "~4.8.3"
   }
-}
+}

src/test.ts

@@ -14,7 +14,6 @@ import {
 
 // Unfortunately there's no typing for the `__karma__` variable. Just declare it as any.
 declare var __karma__: any;
-declare var require: any;
 
 // Prevent Karma from running prematurely.
 __karma__.loaded = function () {};
@@ -24,9 +23,5 @@ getTestBed().initTestEnvironment(
   BrowserDynamicTestingModule,
   platformBrowserDynamicTesting()
 );
-// Then we find all the tests.
-const context = require.context('./', true, /\.spec\.ts$/);
-// And load the modules.
-context.keys().map(context);
 // Finally, start Karma to run the tests.
 __karma__.start();

src/tsconfig.json

@@ -4,17 +4,21 @@
     "declaration": false,
     "downlevelIteration": true,
     "experimentalDecorators": true,
-    "lib": ["es6", "dom"],
+    "lib": [
+      "es6",
+      "dom"
+    ],
     "mapRoot": "./",
     "module": "es2020",
     "moduleResolution": "node",
     "outDir": "../dist/out-tsc",
     "sourceMap": true,
-    "target": "es2020",
+    "target": "ES2022",
     "skipLibCheck": true,
     "typeRoots": [
       "../node_modules/@types"
-    ]
+    ],
+    "useDefineForClassFields": false
   },
   "files": [
     "main.ts",