make sure / and ./ can match when comparing assets URL, "normalize" t…

…he dest path of the emitted file

packages/vite/src/assets.ts

@@ -15,7 +15,9 @@ function findPublicAsset(relativePath: string, resolver: Resolver) {
     for (const addon of engine.activeAddons) {
       pkg = packageCache.ownerOfFile(addon.root);
       if (pkg && pkg.meta && pkg.isV2Addon() && pkg.meta['public-assets']) {
-        const asset = Object.entries(pkg.meta['public-assets']).find(([_key, a]) => a === relativePath)?.[0];
+        const asset = Object.entries(pkg.meta['public-assets']).find(
+          ([_key, a]) => join('.', a) === join('.', relativePath)
+        )?.[0];
         let local = asset ? join(addon.root, asset) : null;
         if (local && existsSync(local)) {
           return local;
@@ -66,7 +68,7 @@ export function assets(): Plugin {
             this.emitFile({
               type: 'asset',
               source: readFileSync(join(pkg.root, path)),
-              fileName: dest.slice(1),
+              fileName: join('.', dest),
             });
           });
         });