region: Fix language section not being marked insensitive

This is due to the widget not being extracted from region.ui and was introduced
in 5c418b89.
11 jobs for <span class="ref-name">region-missing-widget</span> in 4 minutes and 22 seconds (queued for 2 seconds)
Status Job ID Name Coverage
  Build
passed #101040
build

00:02:11

 
  Test
passed #101042
asan

00:01:38

passed #101041
test

00:01:04

 
  Manual
manual #101047
allowed to fail manual
armv8
manual #101043
allowed to fail manual
flatpak
manual #101046
allowed to fail manual
msan
manual #101048
allowed to fail manual
ppc64le
manual #101044
allowed to fail manual
tsan
manual #101045
allowed to fail manual
ubsan
 
  Review
manual #101049
allowed to fail manual
review
manual #101050
allowed to fail manual
stop_review