In this PR:
1. Refactor guards to avoid duplicated queries: WorkspaceAuthGuard and
UserAuthGuard only check for existence of workspace and user in the
request without querying the database
The code removed in the PR was flagged as unused by the JetBrains
inspector.
I did a QA on the dev environment but other checks are highly
recommended.
There is one commit by scope to make the review easier.
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Co-authored-by: Charles Bochet <charles@twenty.com>
**Context**
cf. feature request
[#4597](https://github.com/twentyhq/twenty/issues/4597)
Enables deletion of custom fields that aren't active nor of type
relation
Also
1. renamed a misnamed file
2. deleted redundant hook BeforeDeleteOneField as it seemed best to move
the logic to the resolver instead
**How was it tested?**
Did not write unit tests as code is to be migrated (discussed with
@Weiko).
Locally tested.
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Co-authored-by: Marie Stoppa <mariestoppa@MacBook-Pro-de-Marie.local>
