[Enhancement] Button labels alignment and scrolling logic for RTL languages

[alvroble]

Once we successfully integrate libraqm into the SeedSigner-OS buildroot system (currently done in the fork https://github.com/alvroble/seedsigner-os/tree/feature/libraqm), we can enhance text rendering to support Right-to-Left (RTL) languages properly. This issue proposes implementing button RTL label alignment and text scrolling with the following behavior:

• Default Behavior: button labels are centered or right-justified, depending on the specific case.
• Overflow Behavior: long button labels are right-justified and scroll to the right (mirroring the behavior of TopNav titles) for RTL languages.

This ensures a natural reading experience for users of RTL languages by aligning and scrolling text in the appropriate direction.

Test can be done using the mentioned fork until we succesfully merge it into SeedSigner-OS.