fs-uae: updated to 2.8.3

Changes in FS-UAE 2.8.1:
Alt+F4 and Cmd+Q will no longer quit FS-UAE (in full keyboard emulation mode).
Use raw input on Windows again (allows grabbing of Windows keys, etc).
New option raw_input = 0 will disable use of raw input for keyboard.
Fixed loading shaders from fs-uae.dat.
Updated Xbox 360 configs for Linux.

Changes in FS-UAE Launcher 2.8.2:
New option whdload_boot_dir must be used to enable an old feature, previously it was enabled by the presence of Hard Drives/WHDLoad.

Changes in FS-UAE 2.8.3:
Fix decoding on non-ascii %-escaped file names on directory HDs.
Fixed caps lock.
Imported updated translations from crowdin.com.

(adam)