enable style panel modes

Author: kof

packages/feature-flags/src/flags.ts

@@ -9,4 +9,4 @@ export const staticExport = false;
 export const contentEditableMode = false;
 export const command = false;
 export const headSlotComponent = false;
-export const stylePanelModes = false;
+export const stylePanelModes = true;