The application name should never appear in a translatable string.
Otherwise it will always show translated in the app, even if the
user configured the Locale prefs to not "Translate app and folder
names".
Always concatenate the B_TRANSLATE_SYSTEM_NAME'ed string.
Use a regular BAboutWindow in the Sounds prefs.
Change-Id: I85f02a3aa6c76b22266d495cf7514cc499bc31e8
Reviewed-on: https://review.haiku-os.org/c/haiku/+/10234
Reviewed-by: Adrien Destugues <[email protected]>