docs: update Components list (#6253)

Add SubsCapsButton, SeekToLive and LiveTracker.

Fixes #5980.

docs/guides/components.md

@@ -296,27 +296,30 @@ Player
 ├── TextTrackDisplay
 ├── LoadingSpinner
 ├── BigPlayButton
+├── LiveTracker (has no DOM element)
 ├─┬ ControlBar
 │ ├── PlayToggle
 │ ├── VolumePanel
 │ ├── CurrentTimeDisplay (hidden by default)
 │ ├── TimeDivider (hidden by default)
 │ ├── DurationDisplay (hidden by default)
-│ ├─┬ ProgressControl (hidden during live playback)
+│ ├─┬ ProgressControl (hidden during live playback, except when liveui: true)
 │ │ └─┬ SeekBar
 │ │   ├── LoadProgressBar
 │ │   ├── MouseTimeDisplay
 │ │   └── PlayProgressBar
 │ ├── LiveDisplay (hidden during VOD playback)
+│ ├── SeekToLive (hidden during VOD playback)
 │ ├── RemainingTimeDisplay
 │ ├── CustomControlSpacer (has no UI)
 │ ├── PlaybackRateMenuButton (hidden, unless playback tech supports rate changes)
 │ ├── ChaptersButton (hidden, unless there are relevant tracks)
 │ ├── DescriptionsButton (hidden, unless there are relevant tracks)
 │ ├── SubtitlesButton (hidden, unless there are relevant tracks)
 │ ├── CaptionsButton (hidden, unless there are relevant tracks)
+│ ├── SubsCapsButton
 │ ├── AudioTrackButton (hidden, unless there are relevant tracks)
-│ └── PictureInPictureToggle
+│ ├── PictureInPictureToggle
 │ └── FullscreenToggle
 ├── ErrorDisplay (hidden, until there is an error)
 ├── TextTrackSettings

docs/guides/player-workflows.md

@@ -7,6 +7,7 @@ This document outlines many considerations for using Video.js for advanced playe
 * [Accessing a player that has already been created on a page](#accessing-a-player-that-has-already-been-created-on-a-page)
 * [Removing Players](#removing-players)
   * [dispose()](#dispose)
+  * [Checking if a Player is Disposed](#checking-if-a-player-is-disposed)
   * [Signs of an Undisposed Player](#signs-of-an-undisposed-player)
 * [Showing and Hiding a Player](#showing-and-hiding-a-player)
 * [Changing the volume of a player](#changing-the-volume-of-a-player)