Export raw message payload

[PietervdWerk]

I would love to have a keybind to directly export the raw message payload to clipboard, or maybe open it in the configured $EDITOR environment variable.

I would love to make a PR for this if you're open for it.

[EdJoPaTo]

Sounds similar to the idea of #159 🤔

Editor seems weird as it can not be edited?

Raw payload isn't really possible currently as it's checked for JSON (so also float) / MessagePack / String on startup, so the original MQTT bytes are not stored. Even for JSON it could only serialize it currently.
I thought about storing the underlying bytes for partially this reason but also be able to display the raw value instead of the parsed data (like JSON).

I think we should discuss this first, then a PR is definitely welcome!

[PietervdWerk]

Yeah editor might be weird, though I always appreciate it in cli tools to easily view it in neovim. That way its easy to collapse, select, search etc.

Hmm, if the raw payload is not stored it could still be possible to copy a serialized version of the messagepack/json to clipboard right?