feat(service selection): update split duration and fetch volume when time range changes

[ivanahuckova]

This PR:

• Improves the re-requesting of services by volume when the time range "significantly changes." More details can be found in the README. This is an initial step, and further improvements can be made over time.
• Adds a splitDuration of 2 hours if the time range is larger than 4 hours and smaller than 1 day, ensuring metrics are loaded appropriately for these ranges
• Adds documentation for the features in the service selection.
• Moves the Error component to its own module.

Here example - see when volume is queries and when not (big vs small time range changes):

volume.mov

Fixes #289

[gtk-grafana]

Did a quick look and things work as expected, although this might conflict with Sven's ongoing work in #311.

I created another issue: #325 to cache the results when the text search is used, because we're hitting loki pretty hard.

[ivanahuckova]

although this might conflict with Sven's ongoing work in #311.

I don't think it should as we are not using any variables in here.