convert UI for creating actions to Jetpack Compose

[sds100]

Developer TODO (don't remove)

• [ ] create new branch. put issue number at start of name
• [ ] update documentation
• [ ] merge and delete branch (don't squash because want commit history to see why I made changes)
• [ ] show reason for why action is incompatible and disable the action
• [ ] show message on action selection
• [ ] delete old classes

[sds100]

never going to realistically happen....

[sds100]

Nope, it is - at least for choosing actions because it is much easier to add better UIs.