refactor(vite): enable back nf3

Author: pi0

src/build/vite/env.ts

@@ -42,8 +42,7 @@ export function createNitroEnvironment(
  noExternal: ctx.nitro!.options.dev
         ? // Workaround for dev: external dependencies are not resolvable with respect to nodeModulePaths
  new RegExp(runtimeDependencies.join("|"))
-        : // Workaround for build: externals tracing is unstable
- (ctx.nitro!.options.noExternals === false ? undefined : true), // prettier-ignore
+        : undefined,
  conditions: ctx.nitro!.options.exportConditions,
  externalConditions: ctx.nitro!.options.exportConditions,
  },