Migrate miniflux postgres to hosted heroku

[kasuboski]

Heroku offers a free postgres instance up to 1GB. My miniflux db (on the thinkbox) is currently 150MB so it seems I can get away with the free tier.

• [ ] Create a db in heroku
• [ ] Scale down miniflux
• [ ] Push data to heroku db pg:push
• [ ] Switch miniflux config to heroku

[kasuboski]

My miniflux db has 16K rows while the free max is 10K... Guess I won't be on heroku for now