Closes #ISSUE

Simplifies the API to no longer have a variant that returns indices. The
downside is that a few places that used to call
`bindings_for_action_with_indices` now compare `Box<dyn Action>` instead
of indices, however the result is the removal of wrapper code and index
handling that is largely unnecessary

Release Notes:

- N/A *or* Added/Fixed/Improved ...

Co-authored-by: Conrad <conrad@zed.dev>