* Add select component for choosing step option
* Add onStepChange
* Add functionality for max step
* Rename minInterval to stepInterval to describe min, max and exact step interval
* Change select option from standard to exact
* Add new type StepType for better type safety
* Add tests for adjustInterval
* Add functionality and tests for exact step option
* Prometheus: Spell out min and max in select component
* Prometheus: Change width of step select component and add placeholder
* Prometheus: Adjust for the factor in exact step
* Prometheus: Update tooltip of step lable to include max and exact options and add padding to select component to give it some breathing room from other components
* Update snapshot for step tooltip
* Prometheus: make tooltip more informative
* Prometheus: add tooltip to interval input element
* Prometheus: extract default step option
* Prometheus: update snapshot for PromQueryEditor
* Prometheus: change step labels to uppercase
* Prometheus: define a default step option
* Prometheus: use default step option in both ui component and logic
* Prometheus: update snapshot for PromQueryEditor
* Prometheus: refactor datasource.ts for better readability
* Prometheus: change tool tip for step
* Prometheus: update snapshots
* Prometheus: add correct styling
* Prometheus: update snapshots
* Prometheus change variable name to something less superfluous
* Prometheus: refactor
* Prometheus: add new test for adjustInterval
* Docs: Update docummentation on the step parameter for prometheus
* Prometheus: make step input field smaller and change placeholder text to 15s
* Prometheus: update snapshots
* Prometheus: Make stepMode uniform in all places in the code
* Prometheus: update documentation and tooltip for step
* Prometheus: update snapshots
Olof Bourghardt
ddf5b65c51