DevCard Tools: refactor for feature checks vs plan checks

There is the `` component which allows those on Jetpack dev versions to do things like switch the active plan level (in local state). This is great for quick UI testing of the dashboard, but as we implement more feature checks over plan checks, in its current state the Dev Tools become a lot less useful. Related internal: p58i-cef-p2

We should consider updating the `` component so it works better for the feature checks being added.

Start by locating the component and reading how it currently changes plan levels in local state. Review the dashboard's feature checks and determine the expected feature-check controls; done means the Dev Tools support useful UI testing for those checks as well as plan checks.

Written by the indexing model from the issue text.