* validateDictionaries gradle task now makes use of caching for much faster builds
* lowered the severity of missing translations linting rule
* fixed some more errors in the translations
* added linting task to the GitHub CI validation workflow
* enabled GitHub CI validation on push to master
* added a github workflow for closing stale issues
* added github PR validation workflows
* fixed the dictionary validator missing digits in words
* fixed the build failing completely when there no git tags
* updated androidx.room 2.4.3 -> 2.5.0