feat(LOY-62): Add ScriptedRewardText component

constants/membershipLevels.ts

@@ -18,4 +18,10 @@ export enum MembershipLevelEnum {
   L7 = "L7",
 }
 
+export function isMembershipLevel(value: string): value is MembershipLevelEnum {
+  return Object.values(MembershipLevelEnum).includes(
+    value as MembershipLevelEnum
+  )
+}
+
 export type MembershipLevel = keyof typeof MembershipLevelEnum