TODO: update package.json to match once @decky/ui is on NPM

i must have done a great deal of harm in a past life to deserve this mistreatment by formatting tools. why do they hate me.

* git no work so manually uploading files :(

* argh i wish git was working

* ok next time i'll make git work

* Update updater.py

* git please work next time this took ages without you

* fix me locales

* Update updater.py

* Update en-US.json

* Update updater.py

* Update updater.py

* i wish my python LSP stuff was working

* fix it

* Update updater.py

* Update updater.py

* Only show testing branch as an option if it is already selected

* Initial implementation for fetching the open PRs. Still need testing and a token to complete this.

* Wrong filter capitalization

* Fix a couple of typos in the python backend updater.

* Fix typos pt 3

* This should be the last one

* Prepend the PR version number with PR- to make it clearer that's the PR number.

* Update prettier to the latest version otherwise it will never be happy with the formatting.

* fix merge mistake

* fix pyright errors & type hint most new code

* fix strict pyright errors...

* not sure why my local linter didn't catch this

* Reimplement the logic between PR and artifact build to limit API calls

* Fix pyright errors

* use nightly.link for downloads

* remove accidental dollar sign

* fix various logical errors. the code actually works now.

* set branch to testing when user downloads a testing version

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Co-authored-by: Marco Rodolfi <marco.rodolfi@tuta.io>