[chore] PRAW 8 will change how methods will be called

[itsthejoker]

https://www.reddit.com/r/redditdev/comments/un1n3c/any_idea_when_praw_8_will_come_out/i85ea90/?utm_source=reddit&utm_medium=web2x&context=3

We will need to go through all of the bots and verify that all PRAW calls (except r.redditor(USERNAME)) use keyword arguments instead of direct calls.

Bad: r.redditor("spez").message("TEST", "test message from PRAW")

Good: r.redditor("spez").message(subject="TEST", message="test message from PRAW")