Update translation of GUI strings to Norwegian and Spanish

[matsduf]

Most strings are translated as they should, but the the following terms have been added late. If you can provide translation to your respective language of those as a comment to this PR I will add them to the XLF files.

Used as alternative text for spoken rendering for visually impaired people for "«" etc in history pop-up window:

First
Previous
Next
Last

To be displayed in the footer:

Source code
Documentation

[samisalmensuo]

FI:

First
Ensimmäinen

Previous
Edellinen

Next
Seuraava

Last
Viimeinen

Source code
Lähdekoodi

Documentation
Dokumentaatio

[samisalmensuo]

Sorry wrong language :D

[huguei]

Follows spanish translation.

I'm not sure what type of graphical interface is. I'm assuming "male gender" in translation, which works for buttons or listings, but if it were something referring to "screens" for example, it'll be best using female gender.

• First: Primero
• Previous: Anterior
• Next: Siguiente
• Last: Último
• Source code: Código fuente
• Documentation: Documentación

[matsduf]

First
Previous
Next
Last

@blacksponge, where do we find the terms above being used? I do not see them in the GUI. See the comment from @huguei above.

[hannaeko]

They are used as alt text (e.g. for screen readers) in history pagination.

[matsduf]

Finnish is handled in #420.

[repperille]

NB:

First
Først

Previous
Tidligere

Next
Neste

Last
Siste

Source code
Kildekode

Documentation
Dokumentasjon

[matsduf]

@repperille, please review #423.

@huguei, should it be masculine gender as given above or should it be feminine gender? It is about a window so it sounds like feminine?

[huguei]

@matsduf Yes, it's "window" or "screen", so its feminine in both cases.
There're two changes, new translation is:

• First: Primera
• Previous: Anterior
• Next: Siguiente
• Last: Última
• Source code: Código fuente
• Documentation: Documentación

Thanks.

[matsduf]

@huguei, please review #423.

[matsduf]

Updated by #423