Reorder settings in the Entry editor tab in preferences and buttons to hide AI tabs

[priyanshu16095]

Closes #11707

This PR reorders the settings in the Entry Editor tab and adds buttons in the Privacy Notice and Related Articles tabs in the Entry Editor for hiding AI-related tabs.

Mandatory checks

• I own the copyright of the code submitted and I license it under the MIT license
• Change in CHANGELOG.md described in a way that is understandable for the average user (if change is visible to the user)
• Tests created for changes (if applicable)
• Manually tested changed features in running JabRef (always required)
• Screenshots added in PR description (if change is visible to the user)
• Checked developer's documentation: Is the information available and up to date? If not, I outlined it in this pull request.
• Checked documentation: Is the information available and up to date? If not, I created an issue at https://github.com/JabRef/user-documentation/issues or, even better, I submitted a pull request to the documentation repository.

[priyanshu16095]

Recording.2025-04-11.mp4

[priyanshu16095]

What to add in the changelog as one thing was changed and one thing was added?

[Siedlerchr]

One line under Added and one under Changed., the latter e.g. We improved the AI related setttings

[trag-bot]

@trag-bot didn't find any issues in the code! ✅✨

[Siedlerchr]

@calixtus do we need this restart?

[priyanshu16095]

Basically this comes in effect when you reopen the editor.

[koppor]

Live updated implemented in #12958