refactor: move baseUrl fallback logic to paths-plugin.ts

This ensure that we do not set `baseUrl` internally which would trigger a deprecation warning.

Author: alan-agius4

packages/ngtools/webpack/src/ivy/plugin.ts

@@ -410,7 +410,6 @@ export class AngularWebpackPlugin {
       this.pluginOptions.tsconfig,
       this.pluginOptions.compilerOptions,
     );
-    compilerOptions.baseUrl ??= compilerOptions['pathsBasePath'];
     compilerOptions.composite = false;
     compilerOptions.noEmitOnError = false;
     compilerOptions.suppressOutputPathCheck = true;

packages/ngtools/webpack/src/paths-plugin.ts

@@ -45,7 +45,7 @@ export class TypeScriptPathsPlugin {
    * @param options The `paths` and `baseUrl` options from TypeScript's `CompilerOptions`.
    */
   update(options: TypeScriptPathsPluginOptions): void {
-    this.baseUrl = options.baseUrl;
+    this.baseUrl = options.baseUrl ?? (options as Record<string, string>)['pathsBasePath'];
     this.patterns = undefined;
 
     if (options.paths) {