milou - en to pt_BR translation catalogue (3 entries)

en: %1, in category %2
pt_BR: %1, na categoria %2

en: in category %1
pt_BR: na categoria %1

[ctx: placeholder is action e.g. run in terminal, in parenthesis is shortcut]
en: %1 (Shift+Return)
pt_BR: %1 (Shift+Enter)
