`lineLimit` is not honored for messages whose lines are split

[progval]

Describe the bug Messages over the lineLimit are expected to be pastebined, but lines are counted before splitting long lines into multiple messages

To Reproduce Steps to reproduce the behavior:

1. Send a message with 3 lines, one of which is over 500 bytes
2. This sends 4 lines to IRC, even if lineLimit is set to 3

Expected behavior It should be pastebined

Screenshots For example in a Libera channel:

while it looks like this from Element: