Plugin search workflow + enhancements

Please let us use the up/down arrow keys much like one would expect. I would like to be able to 1. enter text to search 2. up/down arrow to browse through the results.

Also let us store some basic meta-data for our plugin libraries.

something like this mockup

So this shows a basic rating system is implemented and can be changed from this same UI. Also shown is something like 18 characters available for your own comments/keywords/tags, which is searchable.

thanks :mrgreen: