Add a Brazilian Portuguese localisation.
Brazilian Portuguese adjustments.

* Align text in columns for options.
* Fix a spelling mistake, "relaizar".
* Consistency with other languages.
* Reorder the hotkey options, which I pasted in incorrectly.
German adjustments, honoring GBAtemp user Charli (github: seesawCharli)'s notes on commit ea8ff33951d53f0e71801052c540dcc1bd0f7f42.

Since then, pictograms for directions have been implemented and I settled on 2 spaces of spacing between a key and its description in the screenshot slideshow window.