locale: sync from Crowdin

Fixes gogs#4811

MISC: bump version

locale: sync from Crowdin

locale: sync from Crowdin

Update locales

issue: response wrong type of comment from AJAX

Prepare release

[CI SKIP]

Update locales

models/user: better directory handling when change username

Previously, if the user base directory somehow doesn't exist, the
application throws 500 for failure of rename.

Now it detects if the application should rename or just create a
new directory.

Bump version