[keyserver] Convert urlInfo in website responders

Summary:
ENG-4670

We also need to convert the urlInfo in the website responder so it works on link containing the new id schema. We can also handle the older links by not converting (the older link already contain schema that's inside the keyserver db).

Depends on D8879 (moving stuff because of cyclic dependencies)

Test Plan:
Open links:

• http://localhost:3000/comm/chat/thread/256%7C86139/ -> navigated to the 86139
• http://localhost:3000/comm/chat/thread/86139/ -> navigated to the 86139 thread, url was changed to match id schema after loading

Try opening links to non-existant threads:

• http://localhost:3000/comm/chat/thread/256%7C861392/ -> navigated to the thread at the top of the thread list
• http://localhost:3000/comm/chat/thread/861392/ -> navigated to the thread at the top of the thread list

Try navigating to settings and check if it worked correctly: http://localhost:3000/comm/settings/account/

Tried navigating to a pending (non-sidebar) threads with two users and was navigated correctly. Navigating to sidebar pending threads doesn't work but from analyzing the code and diffs it isn't supported by the keyserver anyway.

Also opened landing to check if there are no weird cyclic dependecies errors there

Reviewers: tomek, inka, kamil, ginsu

Reviewed By: kamil

Subscribers: ashoat

Differential Revision: https://phab.comm.dev/D8880