Fix: re-implemented bib entry highlight when dragging and dropping files

[Nicholas-An]

Closes #11898
Removed a chunk of code that was overriding the background colour of bib entires when dragging and dropping a file. Initially caused by changes implemented when resolving #11579.

Mandatory checks

• I own the copyright of the code submitted and I licence it under the MIT license
• 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.

[Siedlerchr]

I am not sure that removing all the colors is really a good idea, they were implemented for the different searching options ("floating mode") with groups and without groups

[calixtus]

Yes, this would remove the visual distinction between matching groups in floating search mode.
Please reimplement the matching/non-matching colors. Highlighting must respect them. Maybe @loay can help here?

[Nicholas-An]

Ah that makes sense! I thought for some reason the deleted section was redundant, I'll rework it to work around the matching groups in floating search mode. Thanks for the feedback!

[Siedlerchr]

What is the status here?

[koppor]

Link to PRs "fixing" the colors: #11591

[loay]

Yes, this would remove the visual distinction between matching groups in floating search mode. Please reimplement the matching/non-matching colors. Highlighting must respect them. Maybe @loay can help here?

I think you mentioned the wrong loay here :)

[calixtus]

Ooops, sorry. 🤣

[koppor]

Closing this issue due to inactivity 💤