Fixes #32584 - drop flot charts

All uses of flot charts have been deprecated and are rendering React
counterparts. We can remove flot charts now.

Fixes #32843 - Don't mock sprintf, n__() in js tests

`sprintf` should return an interpolated string, not the original
formatting string. `n__()` should return the correct string for
singular/plural.

Fixes #24351 - chart click through search

Fixes long lasting regression of charts on dashboard not being clickable through.
Adds posibility to specify custom filters for chart segments.
Moves click handler from DonutChartService to ChartService, as there is no reason for...

Fixes #27151 - fixing falsy 100% in charts

Refs #28382 - refactor FactChart

Refs #28382 - create main API reducer

Fixes #28488 - consume jest config from env

Fixes #28595 - move API actions to helper action

instead of writing every API action for every component,
it will be better to consume it from the API Actions file,
it will also be easier to maintain in one place.
refactored the action structure -
moved everything into its payload instead of using many keys.

Fixes #28584 - refactor API middleware payload

split the response and payload which are passed
from the middleware to the reducers.

Fixes #27393 - Update redux for redux-hooks