refactor: apply suggestions from copilot code review

Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>

Author: Ni55aN

src/app/stack/angular/compatibility.ts

@@ -4,7 +4,7 @@ import execa from 'execa'
 
 import { getPackageConfig, setPackageConfig } from '../../../shared/npm'
 import { getTSConfig, setTSConfig } from '../../../shared/ts-config'
-import { AngularTSConfig } from './types'
+import type { AngularTSConfig } from './types'
 
 export async function installCompatibleTS(path: string, version: string) {
   console.log(chalk.bgGreen(' INFO '), chalk.green(`Enforcing the installation of TypeScript ${version} for the specified Angular version (adding "overrides" and "disableTypeScriptVersionCheck")`))

src/app/stack/angular/types.ts

@@ -1,4 +1,4 @@
-import { TSConfig } from '../../../shared/ts-config'
+import type { TSConfig } from '../../../shared/ts-config'
 
 export type AngularVersion = 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19