fix(@schematics/angular): remove experimentalDecorators from new projects

`experimentalDecorators: true` was required to use constructor DI. With recommendation now to use `inject` for DI, new projects don't need the experimental decorators anymore.

Author: JeanMeche

packages/schematics/angular/workspace/files/tsconfig.json.template

@@ -10,7 +10,6 @@
     "noFallthroughCasesInSwitch": true,<% } %>
     "skipLibCheck": true,
     "isolatedModules": true,
-    "experimentalDecorators": true,
     "importHelpers": true,
     "target": "ES2022",
     "module": "preserve"

tests/e2e/tests/build/library/lib-unused-decorated-class-treeshake.ts

@@ -14,7 +14,7 @@ export default async function () {
     'projects/my-lib/src/lib/my-lib.ts',
     `
     function something() {
-      return function (target: any, propertyKey: string, descriptor: PropertyDescriptor) {
+      return function (originalMethod: any, context: ClassMethodDecoratorContext) {
         console.log("someDecorator");
       };
     }

tests/e2e/tests/i18n/setup.ts

@@ -130,7 +130,7 @@ export async function setupI18nConfig() {
   await writeFile(
     'src/app/app.ts',
     `
-    import { Component, Inject, LOCALE_ID } from '@angular/core';
+    import { Component, inject, LOCALE_ID } from '@angular/core';
     import { DatePipe } from '@angular/common';
     import { RouterOutlet } from '@angular/router';
 
@@ -140,7 +140,7 @@ export async function setupI18nConfig() {
       templateUrl: './app.html'
     })
     export class App {
-      constructor(@Inject(LOCALE_ID) public locale: string) { }
+      locale = inject(LOCALE_ID);
       title = 'i18n';
       jan = new Date(2000, 0, 1);
       minutes = 3;

tests/e2e/tests/vitest/tslib-resolution.ts

@@ -14,7 +14,7 @@ export default async function () {
     'src/app/custom-decorator.ts',
     `
     export function MyDecorator() {
-      return function (target: any, propertyKey: string, descriptor: PropertyDescriptor) {
+      return function (originalMethod: any, context: ClassMethodDecoratorContext) {
         // do nothing
       };
     }