Add support for downloading an entire channel

app/main.py

@@ -58,6 +58,7 @@ class Config:
         'OUTPUT_TEMPLATE': '%(title)s.%(ext)s',
         'OUTPUT_TEMPLATE_CHAPTER': '%(title)s - %(section_number)02d - %(section_title)s.%(ext)s',
         'OUTPUT_TEMPLATE_PLAYLIST': '%(playlist_title)s/%(title)s.%(ext)s',
+        'OUTPUT_TEMPLATE_CHANNEL': '%(channel)s/%(title)s.%(ext)s',
         'DEFAULT_OPTION_PLAYLIST_ITEM_LIMIT' : '0',
         'YTDL_OPTIONS': '{}',
         'YTDL_OPTIONS_FILE': '',
@@ -401,7 +402,7 @@ async def on_prepare(request, response):
         response.headers['Access-Control-Allow-Headers'] = 'Content-Type'
 
 app.on_response_prepare.append(on_prepare)
- 
+
 def supports_reuse_port():
     try:
         sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM)