This commit adds a feature that allows users to request periods of inactivity from their managers. This is effectively known as a leave of absence.
The commit also introduces new permissions and migrations, therefore, you'll need to adapt your database according to these changes.
BREAKING CHANGE: This commit updates the Laravel framework to version 9. Additionally, it also updates outdated and abandoned dependencies in the composer.json file.
The resources/lang directory has also been moved to the repository's root directory.
