Use buttons in toolbar

[bnmajor]

This branch also needs an okay from UDRI folks since this change would affect all user workflows (although hopefully as an improvement for all).
Feedback and remaining changes:

• Make sure the frame can still be input manually
• Investigate omega to make sure that the toolbar is not being re-sized/shifting around (Note: There is no fix in this PR but I was unable to reproduce re-sizing/shifting)

[bnmajor]

@psavery There is some additional weirdness that I have noticed while testing this branch. If you click on a point on the slider the value appears to jump around rather that jumping right to that position. In this example it jumps to the last frame and the the value that was clicked on the slider:
Screencast from 03-25-2025 01:23:02 PM.webm
In this example it jumps up in increments of 10 rather than jumping right to the position:
Screencast from 03-25-2025 01:29:29 PM.webm
This does seem to happen in master as well. While I am able to confirm that additional action signals are being sent (causing this behavior) I cannot understand why or if there is a way to correct the behavior.