Refactor language completion tooltips and remove languages with blank translations
- We have some languages in
langs.info
with no comic or website translation (because we lost the website translations). Hide them from the menu and remove from language count. - Additional state "The website is being translated" when website translation is below 100%
- Get rid of some code duplication (would have gotten even worse with a 3rd website state)
Closes #12 (closed)