Feature/polls attempt 2

just opened by me to easier read the diffs t. lain

Adds:

• Creating polls, with proper option and expiry setting options, slightly lackluster validation clientside (entries with same name shouldn't be allowed)
• Voting on polls
• Seeing poll results that update in real time

Dirty things I had to do:

• JS for handling the vote ticks, because html label for/id stuff ruins everything
• Rewrite 'timeago' and move about the i18n stuff to better place
• Got carried away with some eslint fixes

Multi choice with attachment

Poll results on breezy light

Single choice (tick is animated)

Poll form opened

Poll results on a theme with more rounding (pleroma dark)