* on captions popup
	* added Help icon to show instructions on caption mismatch to Help
	* long-press the Focus button sets caption start
	* height expansion has 3 levels
* fixed media caption start position not being live updated
* in FeedSettings, added setting transcript start, used to offest captions when the setting at the media is not set
* when seeking from captions, ensure start offset is factored in
* in swipe actions, added "Reset played position"
