refactor(@angular-devkit/build-angular): use application builder for unknown builders in Vite dev server

The application builder logic will now be used when the Vite-based development server is used with a
custom builder. This aligns with the programmatic export of application builder. This allows consistent
behavior for custom builders that use both the application builder and dev server builder APIs.

Author: clydin

packages/angular_devkit/build_angular/src/builders/dev-server/vite-server.ts

@@ -142,9 +142,9 @@ export async function* serveWithVite(
   });
 
   const build =
-    builderName === '@angular-devkit/build-angular:application'
-      ? buildApplicationInternal
-      : buildEsbuildBrowser;
+    builderName === '@angular-devkit/build-angular:browser-esbuild'
+      ? buildEsbuildBrowser
+      : buildApplicationInternal;
 
   // TODO: Switch this to an architect schedule call when infrastructure settings are supported
   for await (const result of build(