Increase 200 line limit

[sarmong]

Neovim has hardcoded limit of 200 lines in messages.

If the output of a command produces more than 200 line at once (like some huge table), it might not be possible to capture it with this plugin.

However, I think a good improvement would be to append new messages to the bmessages buffer as opposed to overriding the whole message stack. Another nice opt-in feature would be to store all the messages in some cache file and append to it.

[ariel-frischer]

Hey @sarmong this should be possible to implement as an additional feature. But it may become more involved in checking if a new message is a duplicate of the last message or not. I'm a bit busy atm with life but open to take any PRs that set it as a non-default option.