grafana/ui: convert sass to emotion explore classes (#52078)

* refactor: move .explore styling

* refactor: make new theme run

* refactor: convert .explore-split

* refactor: remove .explore and .explore-split

* refactor: cleanup ExplorePaneContainer

* refactor: convert .explore-wrapper

* refactor: move .page-scrollbar-wrapper

* refactor: apply changes from code review

* refactor: add theme to class interface

* refactor: remove typecheck errors

packages/grafana-ui/src/themes/GlobalStyles/page.ts

@@ -26,13 +26,6 @@ export function getPageStyles(theme: GrafanaTheme2) {
       flex: 1 1 0;
     }
 
-    .page-scrollbar-wrapper {
-      width: 100%;
-      flex-grow: 1;
-      width: 100%;
-      min-height: 0;
-    }
-
     .page-scrollbar-content {
       display: flex;
       min-height: 100%;