feat: keyboard navigation for search

[metaforx]

Description
It would be beneficial to add keyboard navigation support for the results in the model/app search. Currently, users need to use the mouse to select an item.

Benefits

• Improved Accessibility
• Consistency with Standard UI Patterns
• Faster and More Efficient Workflow

Possible Implementation

• Enable Arrow Up/Down keys to navigate through search results.
• Pressing Enter should select the highlighted result.
• Esc should close the search dropdown (if applicable).

Would you consider this a useful feature that improves accessibility and efficiency, or more of a nice-to-have?

[lukasvinclav]

This would be a really nice UX touch that I’d love to see in Unfold. I’d like to work on it, but implementing all the details will be time-consuming. If there's any company willing to fund the development, feel free to reach out to me through the contact form below:

https://unfoldadmin.com/consulting/

[lukasvinclav]

@metaforx completed #1419