Update path client/ to pwa/

[wiese]

Apparently, the path and service name client was changed to pwa in the past.

The docs repo still mentions the old name in some places.

$ grep -r "client/"
deployment/traefik.md:Then you edited your `admin/Dockerfile` and `client/Dockerfile` like this:
client-generator/react.md:// client/src/index.js
client-generator/vuetify.md:// client/src/config/entrypoint.js
…

$ grep -r 'client\\'
client-generator/vuetify.md:Remove the directories `client\src\` and `client\public\` and the files `client\package.json\` and `client\yarn.lock\`  (because the distribution comes with a prebuilt react app.)

$ grep -r "docker-compose exec client"
client-generator/react.md:docker-compose exec client
client-generator/vuetify.md:docker-compose exec client
client-generator/vuetify.md:docker-compose exec client
client-generator/vuetify.md:docker-compose exec client
client-generator/vuetify.md:docker-compose exec client

Work on this topic was previously done in e.g. #1294 but this was closed already.

Would a PR for this issue be welcome?

[alanpoulain]

Hello,
Sure, you are welcome to do it!