adapt Container usage to new soko-web

src/Repository/UserInChallengeRepository.php

@@ -5,23 +5,15 @@ use SokoWeb\Database\Query\Select;
 use MapGuesser\PersistentData\Model\Challenge;
 use MapGuesser\PersistentData\Model\User;
 use MapGuesser\PersistentData\Model\UserInChallenge;
-use SokoWeb\PersistentData\PersistentDataManager;
 
 class UserInChallengeRepository
 {
-    private PersistentDataManager $pdm;
-
-    public function __construct()
-    {
-        $this->pdm = new PersistentDataManager();
-    }
-
     public function getAllByUser(User $user) : Generator
     {
         $select = new Select(\Container::$dbConnection);
         $select->where('user_id', '=', $user->getId());
 
-        yield from $this->pdm->selectMultipleFromDb($select, UserInChallenge::class);
+        yield from \Container::$persistentDataManager->selectMultipleFromDb($select, UserInChallenge::class);
     }
 
     public function getAllByChallenge(Challenge $challenge) : Generator
@@ -29,7 +21,7 @@ class UserInChallengeRepository
         $select = new Select(\Container::$dbConnection);
         $select->where('challenge_id', '=', $challenge->getId());
 
-        yield from $this->pdm->selectMultipleFromDb($select, UserInChallenge::class);
+        yield from \Container::$persistentDataManager->selectMultipleFromDb($select, UserInChallenge::class);
     }
 
     public function getAllByChallengeWithUsers(Challenge $challenge) : Generator
@@ -37,7 +29,7 @@ class UserInChallengeRepository
         $select = new Select(\Container::$dbConnection);
         $select->where('challenge_id', '=', $challenge->getId());
 
-        yield from $this->pdm->selectMultipleFromDb($select, UserInChallenge::class, true, [User::class]);
+        yield from \Container::$persistentDataManager->selectMultipleFromDb($select, UserInChallenge::class, true, [User::class]);
     }
 
     public function getByUserIdAndChallenge(int $userId, Challenge $challenge): ?UserInChallenge
@@ -46,7 +38,7 @@ class UserInChallengeRepository
         $select->where('user_id', '=', $userId);
         $select->where('challenge_id', '=', $challenge->getId());
 
-        return $this->pdm->selectFromDb($select, UserInChallenge::class);
+        return \Container::$persistentDataManager->selectFromDb($select, UserInChallenge::class);
     }
 
     public function getByUserIdAndToken(int $userId, string $token_str, array $withRelations = []): ?UserInChallenge
@@ -67,7 +59,7 @@ class UserInChallengeRepository
         $select->where('user_id', '=', $userId);
         $select->where('token', '=', $token);
 
-        return $this->pdm->selectFromDb($select, UserInChallenge::class, true, $withRelations);
+        return \Container::$persistentDataManager->selectFromDb($select, UserInChallenge::class, true, $withRelations);
     }
 
     public function isUserParticipatingInChallenge(int $userId, Challenge $challenge): bool