## 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).
## Fixes:
4220
## Changes:
For `vjs-layout-small`, there is still space to display the said controls. This layout covers devices like Galaxy S5 up to Nexus 6P.
For layouts smaller that that (e.g. 'vjs-layout-xsmall'), they will remain hidden.
## Fixes:
4351: "Infinite load won't work if the same sort option clicked"
Test case:
1. Click Following
2. Click New
3. Scroll down to load at least 1 extra page.
4. Go up and click New again.
## The Issue:
`scrollBottomCbMap[page]` in this case did not reset since the `id` remained the same.
## The Fix:
I don't know how else to notify the effect to run. Perhaps "when `page=1`" is one criteria, but I found that removing `scrollBottomCbMap` can also fix it.
I don't know what scenario that `scrollBottomCbMap` was originally meant to handle, so will need to depend of reviewer to confirm I did not break something else. This fix assumes that recent inf-scroll fixes and debouncing would have addressed the "weird stuff happening with fast scrolling" problem mentioned in the comments.
The previous code was simply delaying the handler, which served the intention of the time, which is to avoid using the wrong coordinate from querying too early. However, we ended up servicing each scroll message.
This is the proper fix, and should technically make scrolling smoother. Maybe this will fix 3576 as well, although I don't see much difference.
## Fixes:
3071: "Infinite scroll stops working when navigating to file page / back"
## The Issue:
In the POP operation, the `page` value is back to 1 due to the initializer `useState(1)`. If the results cache already contained more than 1 page's worth, then the rest of the logic thinks there's nothing to do.
## The Fix:
Previous fixes to Inf-Scroll added a "page correction" code to handle the mismatch. This fix simply adds this scenario to the list of scenarios to perform the correction.
