fix: handle url rewrite when querying wrong endpoint

materialious is guilty of this

views.py

@@ -36,6 +36,10 @@ def ggphtProxy(received_request):
 
 	prefix = "https://yt3.ggpht.com/"
 
+	# fix for how materialious fetches avatars
+	if received_request.startswith("guc/"):
+		return gucProxy(received_request.removeprefix("guc/"))
+
 	ggpht = requests.get(prefix + received_request, headers=ythdd_globals.getHeaders(caller='proxy'), stream=True)
 	ggpht.raw.decode_content = True
 	response = Response(ggpht.raw, mimetype=ggpht.headers['content-type'], status=ggpht.status_code)