SSE: Add Classic conditions editor (#32256)

* moving expressions to components

* move expression type change to util

* rename gel to expressions

* add clasic condition component

* fix types

* incremental checkin

* button styling

* add range inputs

* some logic fixes and layout

* fix remove condition

* hide input if has no value

* typing fix

packages/grafana-ui/src/components/Dropdown/ButtonSelect.tsx

@@ -43,7 +43,7 @@ export const ButtonSelect = React.memo(<T,>(props: Props<T>) => {
   };
 
   return (
-    <>
+    <div className={styles.wrapper}>
       <ToolbarButton
         className={className}
         isOpen={isOpen}
@@ -71,7 +71,7 @@ export const ButtonSelect = React.memo(<T,>(props: Props<T>) => {
           </ClickOutsideWrapper>
         </div>
       )}
-    </>
+    </div>
   );
 });