Create override menu is fiddly and allows for double posting

[djluck]

What went wrong?

What happened:
I tried to create an override and it was frustrating and buggy:

1. The hover tooltip that appears has to be navigated to swiftly and accurately otherwise it disappears. On my laptop trackpad it took me a few attempts per override before I could hit the "Override" button.
2. When creating an override, hitting "Create" doesn't provide any feedback that the create is in progress. As such I hit "Create" multiple times and created an override multiple times!

What did you expect to happen:

• Tooltip display logic doesn't require me to fetch a net
• Protection against creating the same override multiple times
• Feedback about creation of overrides

How do we reproduce it?

1. Goto an on call schedule
2. Attempt to override a persons rota
3. Create a rota but hit "Create" multiple times

Grafana OnCall Version

Cloud

Product Area

Schedules

Grafana OnCall Platform?

None

User's Browser?

No response

Anything else to add?

No response