Use TRee component for Environment dialog (#288)

src-web/components/EnvironmentColorIndicator.tsx

@@ -5,14 +5,17 @@ import { ColorIndicator } from './ColorIndicator';
 export function EnvironmentColorIndicator({
   environment,
   clickToEdit,
+  className,
 }: {
   environment: Environment | null;
   clickToEdit?: boolean;
+  className?: string;
 }) {
   if (environment?.color == null) return null;
 
   return (
     <ColorIndicator
+      className={className}
       color={environment?.color ?? null}
       onClick={clickToEdit ? () => showColorPicker(environment) : undefined}
     />