better support for TBB / TPO software downloaders
In future, I am sure people will want to use downloaders/scripts to do the same with Tor Messenger. Likely those TBB downloaders will be transformed into general TPO downloaders.
There is a number of issues, which harms the usability of these downloaders. Namely, often changes on torproject.org (version format changed, RecommendedTBBVersions location changed, etc.). This ticket will be the parent ticket for all these issues.