Reorganized "General tab" (preamble still here) and "String constants…

[deybis17]

…" placed after "Citation key patterns"

Fixes #9818

• Reorganization of the Order of Tabs:
  Before: General, Saving, String constants, Citation key patterns and Content selectors
  Now: General, Saving, Citation key patterns, String constants and Content selectors

• Reorganization of the contents in General Tab:
  Before: General, Override default file directories and Preamble
  Now: Override default file directories, General and Preamble

• It still missing to separate Preamble seccion in General tab and locate it in its own tab (Preamble Tab)

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1. Change in CHANGELOG.md described in a way that is understandable for the average user (if applicable)
2. Tests created for changes (if applicable)
3. Manually tested changed features in running JabRef (always required)
4. Screenshots added in PR description (for UI changes)
5. Checked developer's documentation: Is the information available and up to date? If not, I outlined it in this pull request.
6. 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.

[Siedlerchr]

Please also add a changelog entry

[koppor]

@deybis-villegas Thank you for working on this.

One more thing. Can you rename the 2nd general heading to "Miscellaneous". You will also need to add this string to JabRef_en.properties. see https://devdocs.jabref.org/code-howtos/localization.html

[koppor]

Can't do quick comment, because new screenshot is there. - I merged main so that this branch has no conflicts.

[deybis17]

General and preamble tab look like this now

Can't do quick comment, because new screenshot is there. - I merged main so that this branch has no conflicts.

[koppor]

I am so sorry that I did not describe the picture content of the issue description as text.

May I mark the demand of the issue with an arrow and a yellow box?

As text: Swap "library mode" and "library encoding".

[deybis17]

I am so sorry that I did not describe the picture content of the issue description as text.

May I mark the demand of the issue with an arrow and a yellow box?

As text: Swap "library mode" and "library encoding".

Now it looks like this:

[calixtus]

I took the liberty to shorten the changelog message a little bit. I hope you don't mind.

[Siedlerchr]

Thanks a lot for your contribution!