Write Dependencies' Version Numbers in gradle.properties file

[ThatSilentCoder]

I've observed that many dependencies in our build.gradle and settings.gradle files have hard-coded version numbers. To streamline the process of managing these versions, I propose that we move all version numbers to the gradle.properties file. This change would allow us to easily upgrade or downgrade versions from a single location, improving maintainability and reducing the risk of inconsistencies.