Closes #11684

Cause of issue: See removed comment in (old) line 71 of OOBibBase.java in changed files. boolean refreshBibliographyDuringSyncWhenCiting was always set to false, which rendered the feature non-functional.

• This is now set properly at the time of citing with JStyles, and the overwrite to false has been removed.
• Some miscellaneous refactoring

Mandatory checks

• Change in CHANGELOG.md described in a way that is understandable for the average user (if applicable)
• Tests created for changes (if applicable)
• Manually tested changed features in running JabRef (always required)
• Screenshots added in PR description (for UI changes)
• 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.