#41341

This got changed for i18n in !12480, however, I forgot to understand
that the meaning of the graphs changed in !12378. This corrects the
behaviour.

Earlier, this was part of another MR, but that got split. Didn't pick
that commit, as there were many merge conflicts. Vim macros seemed faster.

This is not ammended to another commit as it will probably have failing
tests which I'll fix and amend to this commit.

Being the good boyscouts, but mainly because of [the comment in the
review](https://gitlab.com/gitlab-org/gitlab-ce/merge_requests/12378#note_33302115)
the words used for classes and variables are changed to not use builds
anymore.

Achieved by using another table, which both has better indexes and
is smaller. Now the data provided for the user is more valueable too.

Close #32994