refactor(FE-316): Add expandable secondary drawer panel

src/types/stores.d.ts

@@ -10,6 +10,9 @@ type DrawerUISlice = {
   isValid: boolean;
   setIsValid: (v: boolean) => void;
   subscribeIsValid: (callback: (isValid: boolean) => void) => () => void;
+  expandedDrawerOpen: boolean;
+  setExpandedDrawerOpen: (open: boolean) => void;
+  toggleExpandedDrawer: () => void;
 };
 
 export type UIStore = MainUiSlice & DrawerUISlice;