Make --help output consistent - Fix for #14358

[seetharamvanam]

Closes #14358

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 (not 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.

Screenshot

Command: ./gradlew :jabkit:run --args="generate-citation-keys --help"

[koppor]

@seetharamvanam I don't understand why this is draft and why you did not address the bot comment directly after submission.

[seetharamvanam]

@seetharamvanam I don't understand why this is draft and why you did not address the bot comment directly after submission.

@koppor To ensure the recent changes are functioning correctly in my local environment, I am currently running additional unit tests to validate the output thoroughly. For this reason, the PR remains in draft status, and I have not yet addressed the bot comment.

[koppor]

@seetharamvanam can you add a screen for the output? This eases reviewing!

[seetharamvanam]

@seetharamvanam can you add a screen for the output? This eases reviewing!

I have included a screenshot in the PR description