fix(@angular/build): normalize paths during module resolution in Vite

Before this update, the importer path was not normalized, causing mismatches during SSR on Windows.

(cherry picked from commit 30473f9)

packages/angular/build/src/tools/vite/angular-memory-plugin.ts

@@ -55,7 +55,7 @@ export function createAngularMemoryPlugin(options: AngularMemoryPluginOptions):
         return source;
       }
 
-      if (importer && source[0] === '.' && importer.startsWith(virtualProjectRoot)) {
+      if (importer && source[0] === '.' && normalizePath(importer).startsWith(virtualProjectRoot)) {
         // Remove query if present
         const [importerFile] = importer.split('?', 1);