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Quoting Things

- Updates924
This is a fairly minor update, but I've expanded use of quotes from Tempra Simple (where you can invoke it with [quote], if plugin bbcode is enabled) to Shadow, Cosora and Nox as-well.
I've also added a button so that you can more easily quote posts, as-well as adding support for <\blockquote> elements.

This is fairy rudimentary right now, but I might add linked quotes in the future for moving around topics a bit faster and maybe I can find some ways to optimise pages too with them.