* Copy https://github.com/check-spelling/spell-check-this/tree/main/.github
* Update spelling/excludes.txt
* Copy words of .vscode/settings.json -> "cSpell.words" to expect list
* Only check C++ and Dart files
* Exclude feedback_localization.dart
* Do not check Qt words
* Fill allow list with C++ 17 & Dart & Qt keywords
Calcitem