feat: add support for github codespaces (WIP)

[mandrasch]

Test this PR:

1. Open this PR in codespaces: https://codespaces.new/mandrasch/ddev-craftcms-vite/pull/1
2. Switch vite port to public in ports tab
3. Start vite: ddev npm run dev
4. ddev launch - open site in browser

TODOs

• [ ] test rebuilds with ddev poweroff (https://github.com/ddev/ddev/issues/5071#issuecomment-1620570680)
• [ ] sometimes i run into "502 Bad Gateway" on the vite dev server 🤔 inform users that switching vite port to https and public can take some time

Troubleshooting

• if there is a errors, use CMD + Shift + P => "Full rebuild container" (or try normal rebuild)

Resources / infos

• https://ddev.readthedocs.io/en/latest/users/install/ddev-installation/#github-codespaces
• The URL schema for ports is https://{CODESPACE_NAME}-{port}.preview.app.github.dev/, e.g. https://mandrasch-cautious-winner-69r94wgjqcrqq4-3000.preview.app.github.dev/src/js/app.js ; see ports tab