Overview of changes in gnome-calculator 40.beta
* Updated Translations
* Fixed CI build (Robert Roth)
* Fixed issues with initial loading of currencies (Robert Roth)
* Rework currency retrieval preparing for currency provider plugins (Robert Roth)
* Fixed commandline conversions #33 (Robert Roth)
* Added currency conversion tests (Robert Roth)
* Added support for frequencies conversion (Dave Hulst)
* Added support for converting to and from weeks (Dave Hulst)
* Added support for converting to and from centuries and decades (Dave Hulst)
* Increase buttons font size #201 (Robert Roth)
* Added % button to Advanced mode (Dave Hulst)
* Show 4 decimals in converter instead of only two #203 (Robert Roth)
* Added style classes to buttons !76 (Dave Hulst)