Fix resetting of entry editor prefs

[HamzehAdawi]

Closes #14401

This PR fixes the "Enable resetting of EntryEditorPreferences" issue.

Steps to test

Mandatory checks

• I own the copyright of the code submitted and I license it under the MIT license
• I manually tested my changes in running JabRef (always required)
• [/] I added JUnit tests for changes (if applicable)
• [/] I added screenshots in the PR description (if change is visible to the user)
• [/] I described the change in CHANGELOG.md in a way that is understandable for the average user (if change is visible to the user)
• [/] I checked the user 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 updating file(s) in https://github.com/JabRef/user-documentation/tree/main/en.

[github-actions]

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[koppor]

Which part of the following image didn't you understand?

[calixtus]

Try to use less AI and check your commits before pushing them. There are really sloppy mistakes that could be easily avoided by reading the code instead of just running an agent. Open source is not about writing the most code, but understand it and maybe also learn a little bit.

Please fix the mistakes.

[HamzehAdawi]

Removed the redundant methods and fixed EntryEditorPreferences, as requested. Please let me know if any additional changes are needed, sorry for the oversight.

[calixtus]

You know that this is the fun part?
They need to be adapted too, i think.

[HamzehAdawi]

Moved EntryEditorPref constants from JabRefCli to JabRefGui.

@calixtus regarding the EntryEditorTabs, I am not entirely sure if this is what you had in mind, so please let me know if anything should be adjusted there.

Looks good at first sight.