chore(lint): unexpected lexical declaration in case block

src/services/challenge.service.ts

@@ -24,7 +24,6 @@ import {
   Relation,
   RelationEntitiesObject,
   TimePeriod,
-  UserAction,
   UserChallenge,
   UserChallengeEntity,
   UserDuel,
@@ -718,13 +717,11 @@ export default class ChallengeService {
         }
         break
       case UserChallengeUpdateFlag.ACTION_START:
-        let userAction: UserAction = userChallenge.action
-        if (action) {
-          userAction = actionService.launchAction(action)
-        }
         updatedUserChallenge = {
           ...userChallenge,
-          action: userAction,
+          action: action
+            ? actionService.launchAction(action)
+            : userChallenge.action,
         }
         break
       case UserChallengeUpdateFlag.ACTION_NOTIFICATION: