Add more aesthetic buttons to choose which Bluetooth pairing method to use

User story

As a user I want to have nice looking buttons to choose between the various Bluetooth pairing methods so that I'd love to use the app even more.

This issue adds to the repository a visual replacement for the pairing buttons in the pairing activity of Bluetooth.

This issue is needed for the project because the current pairing buttons are not visually appealing.

This feature can be added by replacing the buttons by gif animations that show how the pairing methods working generally.

This features is not ready until the following issues are finished:

This task can be considered done when

There are visually appealing buttons to choose which Bluetooth pairing method to use.