fix: update innertube clients and fix HLS/DASH quality switching

- Update innertube client versions to match yt-dlp (android 21.02.35,
  ios 21.02.3, web 2.20260114.08.00, android_vr 1.65.10)
- Remove obsolete clients (android-test-suite, ios_vr)
- Replace tv_embedded with TVHTML5_SIMPLY (cn 75)
- Add new clients: web_embedded, mweb, tv
- Fix HLS freeze on quality switch: use nextLevel instead of
  currentLevel, handle bufferStalledError, stream proxy segments
  instead of buffering in memory
- Populate DASH quality selector with actual sources (no Auto)
- Render quality-select empty in template, let JS populate per mode

1 files changed, 2 insertions, 1 deletions

diff --git a/youtube/yt_data_extract/__init__.py b/youtube/yt_data_extract/__init__.py
index 63b1b37..1e7fdea 100644
--- a/youtube/yt_data_extract/__init__.py
+++ b/youtube/yt_data_extract/__init__.py
@@ -1,7 +1,8 @@
 from .common import (get, multi_get, deep_get, multi_deep_get,
     liberal_update, conservative_update, remove_redirect, normalize_url,
     extract_str, extract_formatted_text, extract_int, extract_approx_int,
-    extract_date, extract_item_info, extract_items, extract_response)
+    extract_date, extract_item_info, extract_items, extract_response,
+    concat_or_none)
 
 from .everything_else import (extract_channel_info, extract_search_info,
     extract_playlist_metadata, extract_playlist_info, extract_comments_info)