Test runs successfully, but does not yet test for the existence of episode descriptions.
Tries sequentially to find common tags containing episode descriptions for podcasts when using the generic extractor. Silently allows description to be None if there are not any found.
[ci skip]
closes #1933 closes #15704 closes #15855 closes #18967 closes #21986
format_note should now show 标清, 高清, 超清, 蓝光, etc.