Move ClientType into Twitch class as an attribute

This allows us to use the base URL as specified in ClientInfo for
requests made to Twitch.

Previously, we'd hardcode "www.twitch.tv" as the base URL to make
channel-related requests, but because we're currently spoofing the
mobile client, that would always cause a HTTP redirect to m.twitch.tv.

This change avoids that HTTP redirect, and potentially saves a whopping
150 ms (or more 😱) when making channel-related requests.

Co-authored-by: DevilXD <4180725+DevilXD@users.noreply.github.com>

channel.py

@@ -9,7 +9,7 @@ from typing import Any, SupportsInt, TYPE_CHECKING
 
 from utils import invalidate_cache, json_minify, Game
 from exceptions import MinerException, RequestException
-from constants import BASE_URL, GQL_OPERATIONS, ONLINE_DELAY, URLType
+from constants import GQL_OPERATIONS, ONLINE_DELAY, URLType
 
 if TYPE_CHECKING:
     from twitch import Twitch
@@ -151,7 +151,7 @@ class Channel:
 
     @property
     def url(self) -> URLType:
-        return URLType(f"{BASE_URL}/{self._login}")
+        return URLType(f"{self._twitch._client_type.CLIENT_URL}/{self._login}")
 
     @property
     def iid(self) -> str: