Push Notifications for Pleroma

[taoeffect]

Describe the bug

Push Notifications don't work with Pleroma instances.

To reproduce

Steps to reproduce the behavior:

1. Use a pleroma instance

Does this happen in the official app?

Yes

In case it does, please consider filing an upstream bug report instead.
If this bug is seriously impacting your usage or you think I might want to try to fix it for Megalodon, feel free to still create this issue!

Version

Megalodon version: 2.1.6+fork.110