lang: fix typo on user management for english.

Last commit build by the CI

gui: some fix/refactor.

interace: make game installation work even if game is not in the root…

… zip (Vita3K#855)

ngs: fix minor index error

vita3k: fix uninitialized variable crash in debug build

shader: swizzle cycling in uint8 vpck

gui: fix save dialog substatus

io/SceAppUtil: fix file open modes and fix saving in truncate mode an…

…d fix param->status for mages games

external: update unicorn