Spanish AMO summary translation is too long

[rugk]

The AMO summary texts are limited to 250 characters. The Spanish translation is currently too long.

I shortened it now to:

Esta extensión te permite generar rápidamente códigos QR offline de una URL abierta en tus pestañas o cualquier texto (seleccionado)! 👍

Funciona completamente offline protegiendo así tu privacidad!

See 549ab33 for more information.

But @Fanksies / @bryancalisto / dverbru FYI if you wanna correct it or provide a better short translation, feel free to create a PR.

[bryancalisto]

Hey rugk, I didn't see this earlier. I just set this PR up for this