feat(plugins): plugin select unification [khcp-9487]

[kaiarrowood]

Summary

Unification for the Plugins -> Select page. For KHCP-9487.

PR Checklist

• Naming & Structure: the files and package structure use the conventions outlined in the Creating a Package docs.
• Tests pass: check the output of all package unit and/or component tests.
  • If this PR is the result of a bug, test coverage was added accordingly.
• Functional: all changes do not break existing APIs, but if so, a BREAKING CHANGE commit is in place to bump the major version.
• Conventional Commits all commits follow the conventional commit standards outlined in the main README.
• Docs: includes a technically accurate README, and the docs have been updated accordingly based on the changes in this PR.

[adamdehaven]

question: why this specific max-width?

[kaiarrowood]

I'm assuming we don't want the cards themselves to be resizing based on the space available. This is the width that seems to look best for the design?

[adamdehaven]

Could we use CSS grid to handle the size instead of flex?

[kaiarrowood]

I don't have time to refactor the CSS right now and this isn't something I know how to do off the top of my head. Could it be a ticket for the backlog?

[Leopoldthecoder]

Can we adjust the size of skeletons so they align with the size of actual plugin cards? Right now they are a lot bigger. Also I think the divider can be moved up a little, and its color can be lighter.