Angular issue with `esbuild`: 504 on webworker URL

**Describe the bug**
I tried downloading and running the [Angular example](https://github.com/ffmpegwasm/ffmpeg.wasm/tree/main/apps/angular-app). After installing, loading the scripts `Ffmpeg#load()` produces a 504 error.

**To Reproduce**
Download the Angular example, run `npm install` and `ng serve`. Open devtools and click on the load button.

**Expected behavior**
For the load function to work.

**Screenshots**

**Desktop (please complete the following information):**
- OS: Windows 11
- Browser: Chrome
- Version 123.0.6312.58 (Official Build) (64-bit)

**Smartphone (please complete the following information):**
Not Applicable