Update translation branch according to commit 4759f65b6 in branch master::
Before this commit, when the user picks "Chinese, China" or "Chinese,
Taiwan", the locale fallbacks to English.
This commit fixes this issue (the translations branch must be updated)
Related-to: https://github.com/searxng/searxng/pull/380
Signed-off-by: Markus Heiser <markus.heiser@darmarit.de>
