Review the libs in the dependencies #15
Description
As the app is a open-source one, is mandatory that the libraries that it uses are open-source too, because of the philosophy of the project and also because of the policy of publishing apps in the F-Droid repository that says the deps should be open-source too. With that said it is needed to check if the dependencies of the project are open-source and if not, change to a open-source solution to the library proposal or hard-code the feature that it offers.