## Issue
Fixes 4293 `Better download link support`
- [x] make it so you can right click a download button > copy download URL
Given that this could be useful in mobile/web as well, I used a button+modal instead of the right-click approach.
- [ ] in share dialog, show download URL to copy for non-video content
This is already implemented, albeit hidden in the "More..." expansion.
## Issue
Fixes 4460 `unmuted state lost / reverted`
1. Play a video.
2. Press mute.
3. Drag the volume bar to unmute.
4. Play a new video --> the video starts muted.
## Fix
The `volumechange` handler was comparing against stale variables, so there are times where the state was not saved. Just save both `muted` and `volume` without additional gating (the gating is probably unnecessary in the first place, since we are in a onChange function).
- Missed the "Account Password" card that is used for authenticated case.
- For cards that are only used in Settings, listen to the language change in "select" instead of passing in as a prop. I think this is cleaner.
## Issue
4332: Video transcode setting not reflected correctly (MP3 incorrectly transcoded to MP4)
2 issues here:
(1) The checkbox is mixing between user state and logic state.
(2) The variables (e.g. `optimize`, `isVid`, `filePath`, etc) will have values from the previous operation when you enter Publish Page, so GUI issues beyond Transcode can be also produced (e.g. showing Transcode enabled for an image).
## Changes
The "Transcode" checkbox state (checked vs. unchecked) will now reflect the user's desire and will be a persisted state. Whether or not this setting is used will be reflected by the checkbox's grayed-out state (i.e. it can be checked for non videos, but it will be grayed out).
