Implement editing ratelimit

[Arnuh]

https://www.reddit.com/r/redditdev/comments/miqx0k/on_the_new_rate_limit_for_editing_comments/

Gives a result of

{"json": {"ratelimit": 4.701076, "errors": [["RATELIMIT", "Looks like you've been doing that a lot. Take a break for 4 seconds before trying again.", "ratelimit"]]}}

Need to create a slightly separate ratelimiter for edits which will check for these responses & also specifically prevent edits happening faster than 5 seconds.