fix: 修改会话共享可以指定用户的一些问题

apps/terminal/migrations/0051_sessionsharing_users.py

@@ -1,4 +1,4 @@
-# Generated by Django 3.1.14 on 2022-05-17 00:52
+# Generated by Django 3.1.14 on 2022-06-30 03:38
 
 from django.db import migrations, models
 
@@ -6,13 +6,13 @@ from django.db import migrations, models
 class Migration(migrations.Migration):
 
     dependencies = [
-        ('terminal', '0049_endpoint_redis_port'),
+        ('terminal', '0050_auto_20220606_1745'),
     ]
 
     operations = [
         migrations.AddField(
             model_name='sessionsharing',
             name='users',
-            field=models.CharField(default=list, max_length=1024, verbose_name='User'),
+            field=models.TextField(blank=True, verbose_name='User'),
         ),
     ]