DELETE Group Tab

[SkylerBurger]

As a user, I want the ability to delete a DialGroup from my config through the UI so I can remove unwanted dials in mass.

• [x] In the GroupDetails view add a "Delete Group" button.
• [x] Clicking the button will pop up a confirmation screen to either "Return" or Continue with Deletion".
• [x] If the current group is the only group, it cannot be deleted. One group must exist at all times.
  • [x] Add tooltip to grayed-out "Delete" button that mentions one group must exist.
• [x] Deleting the group will:
  • [x] Update the config in state and localStorage
  • [x] Set the groupIndex to 0 so the first group is shown upon re-render

[SkylerBurger]

This depends on completion of issue #6

[SkylerBurger]

This Issue was addressed in PR #51