Fix cursor jumping

[koppor]

Fixes #5904

Draft, because some white space issues. And my "fix" for ## seems to have broken something.

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.

[koppor]

I don't know about the discrepancy about local and remote test execution

• CI: FAILURE: Executed 8661 tests in 4m 28s (3 failed, 29 skipped)
• local: FAILURE: Executed 8661 tests completed, 51 failed, 16 skipped

[github-actions]

The build of this PR is available at https://builds.jabref.org/pull/11282/merge.