l10n: uk: add 2.50 translation

Co-authored-by: Kate Golovanova <kate@kgthreads.com>
Co-authored-by: Tamara Lazerka <98753789+aramattamara@users.noreply.github.com>
Signed-off-by: Arkadii Yakovets <ark@cho.red>
Signed-off-by: Kate Golovanova <kate@kgthreads.com>
Signed-off-by: Tamara Lazerka <98753789+aramattamara@users.noreply.github.com>

Author: 3 people