add 8k support

app/sync/migrations/0017_auto_20201208_0521.py

@@ -0,0 +1,18 @@
+# Generated by Django 3.1.4 on 2020-12-08 05:21
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('sync', '0016_auto_20201208_0518'),
+    ]
+
+    operations = [
+        migrations.AlterField(
+            model_name='source',
+            name='source_resolution',
+            field=models.CharField(choices=[('360p', '360p (SD)'), ('480p', '480p (SD)'), ('720p', '720p (HD)'), ('1080p', '1080p (Full HD)'), ('1440p', '1440p (2K)'), ('2160p', '2160p (4K)'), ('4320p', '4320p (8K)'), ('audio', 'Audio only')], db_index=True, default='1080p', help_text='Source resolution, desired video resolution to download', max_length=8, verbose_name='source resolution'),
+        ),
+    ]