Fix migration

Author: roxblnfk

resources/migrations/20210122.230108_0_0_default_change_link_suggestion_add_source_change_user_account_add_username.php

@@ -29,15 +29,15 @@ public function up(): void
 
     public function down(): void
     {
-        $this->table('identity')
+        $this->table('user_identity')
             ->addColumn('token', 'string', [
-                'nullable' => false,
+                'nullable' => true,
                 'default'  => null,
                 'size'     => 128
             ])
             ->addIndex(["token"], [
                 'name'   => 'identity_index_token_5f34458bf367f',
-                'unique' => true
+                'unique' => true,
             ])
             ->update();