Update remote platform message data to have similar structure with local messages

[S-S-X]

Remote message data can be and is bit different but should be restructured before handing it out to event handlers and/or chat API.

Probable either just before calling handle_data or after first sanity check and before first event handler callbacks here:

beerchat/web/rx.lua

Lines 3 to 10 in 0f106b1

	local function handle_data(data)
	if not data or not data.username or not data.text or not data.gateway or not data.protocol then
	return
	end
	if not beerchat.execute_callbacks('on_http_receive', data) then
	return
	end