Rewrite: TypeScript-only

[EndBug]

• ref is now called branch
• force has been removed: add the --force argument to add and remove instead
• tag is now the arguments used for a git tag command
• Errors from git commands should cause the action to fail (fixes Failure to push isn't considered an error. #53)
• git add and git rm don't cause the action to fail if they don't match any file, they only show a warning
• When a tag push is rejected, the action automatically tries to delete and re-create the tag on the remote: if it fails again, it will cause the step to fail
• signoff now only accepts true and false as values
• Action logs are correctly displayed on Windows too (fixes Action won't display logs in Windows instances #45)

[github-actions]

This PR is being marked as "stale" because it has been open 20 days with no activity. Remove the "stale" label or comment, otherwise this will be closed in 5 days.