Add a settings link to each plugin card, using the new Button component.

Before we can expect that link that work, we need to make sure we catch each plugin. That could be tricky as it really depends on when and how the plugin decides to add the url to the plugins filter. Currently there is no standard way of doing this.

It might be easier to open a ticket in Core first, and suggest a new filter/function that would allow plugin devs to define where the canonical settings URL when the plugin includes one.