The initialization function has become too huge to be compiled by some
compilers (notably MinGW-TDM 9.2) after the changes of deef116a09
(Update language database and move support for it to wxUILocale,
2021-11-23), so change the script generating this code to output just an
array element rather than code statements for each language.
This also makes this file much faster to compile with the other
compilers as a nice side effect.
Closes#22100, #22104.
e129c7149d