feat: remove rooms from "websockets-common" package

[Drodevbar]

This PR was created as a follow-up of Igor's comment regarding moving rooms away from shared-ts-lib package. This makes sense since the room names and their corresponding schemas are strictly AP thing.

Please see a corresponding PR that introduces websockets-rooms package into AP: https://github.com/lokalise/autopilot/pull/2392

[Drodevbar]

@kibertoad I am not quite sure what's the best way to approach the issue I run into after extracting rooms to AP package.

The issue is:
packages/app/websockets-common/src/events/client-to-server/reservedRoomEvents.ts references a schema (ROOM_ID_SCHEMA) from rooms package. This schema references a function and this function references some types specific to the rooms.

This makes it impossible to fully get rid of rooms since some of the types created on top of them are still being referenced.

Do you think I should extract the whole websockets-common package out of this repo to AP? Or do you have some different idea in mind?