insights: remove interval step reset when toggling all repos during creation
Created by: chwarwick
During insight creation removes the changes to the step between data points when the user switches from scoped to all repos.
resolves https://github.com/sourcegraph/sourcegraph/issues/39103
Test plan
In Search Insight creation:
- enter an repo and search query
- update interval to 4 weeks
- preview loads
- check
all repos
- validate that time interval remains at 4 weeks
In Detect and Track Insight creation:
- enter an repo and search query
- update interval to 4 weeks
- preview loads
- check
all repos
- validate that time interval remains at 4 weeks
App preview:
Check out the client app preview documentation to learn more.