Add 2021 Aerials Screensavers and fix reported bugs

[kubedzero]

Hope all is well and happy new year 🎉

• I checked in on the state of tvOS and Aerials and found that there were a bunch of new scenes.
  • https://ko-fi.com/post/9-new-videos-available-C0C07GFG2 notes 6 Iceland and 3 Scotland from December 13, 2021
  • https://appleinsider.com/articles/21/09/21/apple-tv-gets-16-new-nature-themed-aerial-screen-savers-with-tvos-15 notes 4 Patagonia, 7 Yosemite, and 5 Grand Canyon videos from September 21, 2021
• I checked the https://sylvan.apple.com/Aerials/resources.tar file but didn't see any updates, meaning it's identical to the file currently committed from early 2021 in this codebase (and customized with deprecated H.264 and other videos)
• I did some looking around and figured out that https://sylvan.apple.com/Aerials/resources-15.tar has updated JSON once unpacked, over 1000 lines more!!! I guess they're appending the tvOS version number now.
• Differences in the new tarball
  • At the top level, the old file had an assets array, the initialAssetCount key, and the version key. The new version has a categories array
  • Inside each of the items in the original assets array (where we source the video URLs) had pointsOfInterest, accessibilityLabel, id, clipNumber url-1080-HDR, url-1080-SDR, url-4K-SDR, url-4K-HDR, url-1080-H264. Now there is a categories array and a shotID, and the clipNumber is no longer used. They seem to differentiate based on shotID and ID alone now, with the accessibilityLabel being the same between them

I took these changes and merged them into the local entries.json file, and also updated the URL to point at the latest version of the Resources tarball. Along with this, I updated the toggle settings to cover missing locations (and the new locations) and added a big block of translations for all three languages as well.

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I also checked the issues folder:

• Fixes https://github.com/enen92/screensaver.atv4/issues/49 which was due to unsafe handling of a None return type when looking up the best-fit URL. Now it should play properly
• Fixes https://github.com/enen92/screensaver.atv4/issues/48 which was due to sorting All with the rest of the locations. All is now prepended and should always be listed first

Testing

• Ran the entrychecksumgenerator.py 2 to confirm the resources.tar file can still be downloaded from Apple, and that the entries.json can be retrieved from inside it
• Ran the entrychecksumgenerator.py 1 to test downloading all videos. I validated that the MD5s matched from the original checksums.json from 2021, so any pre-existing URLs have been validated to retrieve the exact same content as before.
  • I also validated that this script downloaded the full set of 116 videos each for 4K SDR, 4K HDR, 1080p SDR, 1080p HDR, and 122 videos for 10800 SDR H.264 for 586 videos total
• For testing within Kodi, I tested on Kodi 19.3 Matrix on MacOS 12.0.1 Monterey, as well as Windows 10 1907
• Feel free to test locally for a while before merging, I'll be doing the same and will update this PR if I find any issues.

[graysky2]

@kubedzero - Trying your PR now, seems to be working (downloaded 25 new vids) bring the total to 273. Interestingly, I could not apply this PR directly to v3.0.2 because that tarball lacks entrychecksumgenerator.py

I think it's due to https://github.com/enen92/screensaver.atv4/blob/master/.gitattributes#L9

@enen92 - Do you want to remove that line?

[enen92]

@graysky2 that line is important since the file is not to be pushed to the repo when archiving the add-on.

I'll tag a new release shortly, thanks very much @kubedzero