Add Swedish translation

[samuelmr]

Includes the Swedish translation file, modifications to translation-related scripts, and minor fixes to Finnish translation

[svenstucki-pcv]

Dear Samuel

Thanks for contributing yet another language! We are planning to incorporate this into our 1.85 release (expected in ~2 weeks). No need to update the branch on your side, we will take over the translations into our internal systems.

Can we assume the same copyright arrangement as in your previous contribution (#9)?

Thanks,
Sven

[samuelmr]

Can we assume the same copyright arrangement as in your previous contribution (#9)?

Yes you can.

To confirm: by submitting this PR, I hereby irrevocably assign, transfer, and grant to the owner of the original repository procivis/one-wallet all intellectual property rights in this contribution. This assignment includes, without limitation, all copyrights (to the extent waivable under applicable law), database rights, and any other intellectual property rights, worldwide, in perpetuity, and on a royalty-free, transferable, and sublicensable basis.

Signed, Samuel Rinnetmäki, Date: 2026-08-18

[svenstucki-pcv]

Great, thank you!