* Explore: fixes toolbars datasource selector and date picker responsiveness

* Explore: updates grafana UI time picker component - adds a class on long date

* Explore: updates styles for responsive long date without split

* Explore: adds styles for responsive time picker with long date during split

* Explore: updates long datetime detector to isDateTime, renames isAbsolute to hasAbsolute

* Explore: updates datasource responsiveness

* Explore: moves time picker styles

* Explore: updates datasource picker and select component responsiveness

* Explore: updates data source picker

* Explore: updates explore toolbar to use container width

* Explore: updates styles for datasource picker

* Explore: updates Grafana UI elements - select and single value with an ability to hide text

* Explore: updates time picker styles

* Explore: updates datasource select and date picker

* Explore: updates toolbar elements margin

* Explore: updates toolbar elements split breakpoints

* Explore: updates datasource picker label length with substrings

* Explore: updates the datasource picker label length

* Explore: removes refresh picker hide media query

* Explore: updates refresh picker style query to use xs breakpoint