[FEATURE] Toggle predictions and ground truth annotations

[jacksonjacobs1]

Description

Add functionality for toggling gts and preds as well as refreshing preds.

• A toggle should be added to the header of the Ground Truths pane
  • Off: don't display ground truth annotations
  • On: display ground truth annotations
• A toggle should be added to the header of the Predictions pane
  • Off: don't display pred annotations. Disable the dropdown
  • On: display pred annotations. Enable the dropdown
• A dropdown should be added to the predictions pane with the following options
  • 10s: refresh predictions every 10 seconds
  • 20s
  • 60s
  • Never: don't refresh predictions

Preconditions

User has entered the annotation page.