Fix spanish translation for lightning infill

[Pelochus]

Description

Lightning infill was translated as "Iluminación" which means "lighting" (not to be confused with lightning). Lightning actually means "Rayo" or "Rayos" (spanish plural for lightning).

Fix

The translation has been fixed as "Rayos" since it better matches to the infill type, since it has more than one lightning.

You can read this link to verify the translation is correct

Type of change

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Printer definition file(s)
• Translations

Note

I have already made this PR previously, but closed it accidentally, sorry for my mistake.

[MariMakes]

Hi @Pelochus,

Sorry, it took us a while to get back to you 😞
This looks like a good improvement, but must have gotten lost in the 5.5 release efforts.
I'll raise it with the team to see if we can include it soon.

[Pelochus]

Don't worry! It's not an urgent PR. Thanks for responding

[wawanbreton]

Hi @Pelochus, sorry I had to make a few commits to your mainbranch because we had updated the file on our side in the meantine, and it generated some conflicts.
Thanks for your contribution, it will be included in Cura 5.6 !