Query read timeouts happen when a remote server is not available. It
breaks:
- the remote server show page
- the record table page of imported remote tables
This PR will catch the exception so it does not go to Sentry in both
cases.
Also did 2 renaming.
## Context
JobsModule is hard to maintain because we provide all the jobs there,
including their dependencies. This PR aims to split jobs in dedicated
modules.
