fix(@schematics/angular): add missing typeSeparator to main.ts.template file

Author: pawelfras

packages/schematics/angular/application/files/module-files/src/main.ts.template

@@ -1,6 +1,6 @@
 <% if(!!viewEncapsulation) { %>import { ViewEncapsulation } from '@angular/core';
 <% }%>import { platformBrowser } from '@angular/platform-browser';
-import { AppModule } from './app/app-module';
+import { AppModule } from './app/app<%= typeSeparator %>module';
 
 platformBrowser().bootstrapModule(AppModule, {
   <% if(!zoneless) { %>ngZoneEventCoalescing: true,<% } %><% if(!!viewEncapsulation) { %>

packages/schematics/angular/application/index_spec.ts

@@ -919,7 +919,9 @@ describe('Application Schematic', () => {
         };
         const tree = await schematicRunner.runSchematic('application', options, workspaceTree);
         const module = tree.readContent('/projects/foo/src/app/app.module.ts');
+        const main = tree.readContent('/projects/foo/src/main.ts');
         expect(module).toContain(`import { App } from './app.component'`);
+        expect(main).toContain(`import { AppModule } from './app/app.module'`);
       });
 
       it('should create a routing module with the correct suffix', async () => {