* Use minimally required file permissions

* Cleanup

…-json formats (#1067)

* Explicitly specify MessageBox window owners where applicable

* Fix double space

* Avoid spawning an invisible window by setting dark titlebar during SourceInitialized

* Force titlebar repaint when selecting theme or on Windows app theme change

* Use better algorithm for adjusting color visibility

* Make readable usernames configurable

* Update translations

* Use alternate background color when enabled

* Fix readable colors preference not being saved to settings

* More adjustments

* Reduce javascript overhead when computing contrast ratio in HTML chats

…nslation, and improved translation (#1075)

* Add complete translation of README

* Add TwitchDownloaderWPF/README.md translations

* Improved translation

* Include the latest translation updates

* Clear comboBadges before adding badge mask items

* Support translating chatrender badge mask items

…ernames

* Simplify notifying properties

* Fix ReadOnlySpanExtensions.UnEscapedIndexOf ArgumentOutOfRangeException args

* Fix system emoji vendor missing from exception message

* Simplify CacheHandler user prompt code

* Create destination file immediately

* Fix potential NRE

* Implement FileOverwriteHandler for CLI

* Add GetNonCollidingName tests

* TwitchDownloaderArgs -> ITwitchDownloaderArgs & rearrange arg interfaces due to help text ordering

* Update help text

* Create WPF task file overwrite handler

* Throw when no output file is returned, refresh FileInfos before checking Exists property

* Genericize opening explorer for a given file

* Update ___Options output file property to reflect possibly new filename

* Add icon

* Add translations

* Annotate as windows only

* Update README

* Forgot to add it to the whole CLI

* Overwrite -> Collision

* Missed a few spots

* Update wording

* Use warning icon to match file explorer overwrite prompt

* Make "remember my choice" wording more clear

* Fix missing zh-cn translations