On plugin update screen, offer more information and options

[krogsgard]

On the plugin update screen, where all available updates to plugins show, there would be some really neat information to be able to see:

• Is this plugin active on my website right now?
• Delete this (or these) plugin(s) rather than update

There is currently not a lot of information on this screen, and some of that information could be useful, particularly in eliminating cruft or unnecessary and no longer used plugins.

I did a very rough sketch of what I mean, and some information / actions that could be useful. Now that we have synchronous same-screen plugin actionability this may even end up being able to be somewhat elegant.

[krogsgard]

Image of very basic mockup

[jorbin]

I love the idea. Adding the needs-design keyword so that the design team can review this and potentially iterate on the mockup.

[SergeyBiryukov]

Would it be a good idea to always display active plugins first, i.e. in the list table on Plugins screen too? (Also suggested in #44696 and #45056.) Seems consistent with the Themes screen, where the active theme is displayed first.