Loki: add support for resolution (#36710)

* Add input to specify min step

* Add stepInterval to as input to component

* Add onBlur to Input component

* Loki: add functionality for min step

* Loki: change name on props to step to make it more clear

* Loki: add resolution as a query option

* Loki: Add min,max,exact as step options

* Loki: add functionality for different step modes

* Loki: fix bug where step function isn't working

* Loki: fix bug where exact step isn't working

* Loki: change width of step input field

* Loki: add tests for adjustInterval function

* Loki: add check for max step oprio to make sure it's not below the safe interval

* Loki: fix bug with some tests

* Loki: fix bug with tests

* Explore: add tooltip to loki step function

* Loki: remove resolution as a logs option

* Loki: update snapshots

* Fix failing tests

* Loki: add select component for choosing resolution

* Loki: add functionality for calculating correct interval with resolution applied

* Loki: remove functionality for step mode

* Loki: remove tests for step mode

* Loki: add tooltip to line limit and resolution

* Loki: add backend support for resolution

* Loki: fixed backend bug where resolution was undefined

* Loki: add check for resolution

pkg/tsdb/loki/loki.go

@@ -56,6 +56,7 @@ type ResponseModel struct {
 	LegendFormat string `json:"legendFormat"`
 	Interval     string `json:"interval"`
 	IntervalMS   int    `json:"intervalMS"`
+	Resolution   int64  `json:"resolution"`
 }
 
 func init() {
@@ -210,7 +211,12 @@ func (s *Service) parseQuery(dsInfo *datasourceInfo, queryContext *backend.Query
 			return nil, err
 		}
 
-		step := time.Duration(int64(interval.Value))
+		var resolution int64 = 1
+		if model.Resolution >= 1 && model.Resolution <= 5 || model.Resolution == 10 {
+			resolution = model.Resolution
+		}
+
+		step := time.Duration(int64(interval.Value) * resolution)
 
 		qs = append(qs, &lokiQuery{
 			Expr:         model.Expr,