Fix form editor performances

[ccailly]

Checklist before requesting a review

Please delete options that are not relevant.

• I have read the CONTRIBUTING document.
• I have performed a self-review of my code.
• I have added tests that prove my fix is effective or that my feature works.
• This change requires a documentation update.

Description

• Related to Slow performance and crashes when managing the form - glpi 11-rc1 #20416
• form performance, better solution for computeDynamicInputSize #21150 must be merged before

[AdrienClairembault]

Prevent duplicated SQL queries for condition data

For our biggest "garbage dump" test form:

• SQL queries down to 19 (from 1000+).
• Response time down to 1.2s (from 2s).

[cconard96]

Not sure it is related, but getting the tinyMCE toolbar takes two clicks in a form question in the editor.

Overall, performance in the editor seems better.

The performance issue I noticed in the translations tab doesn't seem addressed here. Every tinyMCE editor for each language modal is initialized immediately and the time it takes the server to render the form_translations template is still quite long. So, there is a server and client performance issue there.

[trasher]

There are a lot of fails in e2e tests