Update es_ES.ini

- Fix "Type :" and "Fps :" lines, I don't now why they must have an extra space between words and double point. 
- Added arrows on Graphics Navigation Buttons (original idea from Swyter).
- Other Minor Tweaks.
Update es_ES.ini

Replaces some word for better translation.
Merge pull request #40 from ppmeis/patch-4

Update es_ES.ini