I've completely reworked the way the login works, you shouldn't get any more "Forbidden" errors. Please, test and let me know if you (somehow) still have issues posting comments after logging in.
And a few small features:
This feature is available on one certain app for a not to be mentioned Voat competitor. Basically I can click on a post and just swipe it right to go back to the main sub. I find it very useful and I don't have to fumble with the back arrow or physical back button.
There is an option now in the settings to enable that functionality. Please remember that the app still doesn't have a history feature to go all the way back, it will only go back to the threads list page. Complete backwards navigation will come later on, just be patient :)
Bug: Scroll bar does not move back to top when changing subvoats.
This is done now. It will scroll up when switching subs.
Since I have finally (I BELIEVE) fixed all problems with login. I can now focus on features I want to implement.
If you had problems with login and "Forbidden" before and after the update these problems are gone, PLEASE say it here so I feel a bit better after 3 nights of working on this one annoying problem.
EDIT: This update has been overwritten with 1.3.0, there were a few bugs and I added a new icon.