The vast majority of languages include yY/nN in their yes/no regexes.
Standardize the few that were missing them.
ms_MY: noexpr: add nN
nan_TW@latin: yesexpr: add yY
nan_TW@latin: noexpr: add nN
se_NO: noexpr: add nN
This also highlighted a few that were incorrectly using yY/nN because
they clashed with their localized messages:
uz_UZ: yesexpr: change ^[+1YyHh] to ^[+1ҲҳHh]
uz_UZ: noexpr: change ^[-0JjNn] to ^[-0ЙйNnYyJj]
uz_UZ@cyrillic: yesexpr: change ^[+1ҲҳYy] to ^[+1ҲҳHh]
uz_UZ@cyrillic: noexpr: change ^[-0ЙйNn] to [-0ЙйNnYyJj]
yo_NG: move nN (short for Bẹ́ẹ̀ni) from noexpr to yesexpr