Repetition based rule does not function across new lines

[SecondSkoll]

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• Completed

Environment

Testing performed in Vale Studio and on Linux via Python install.

Describe the bug / provide steps to reproduce it

When a repeated word is separated by a line break, Vale does not report the word as repeated - even if a line break is the only character between them.

A simple modification to the library repetition example can test this, here is a link to it in Vale Studio. Does not function in raw scope either.

Repeated words can occur frequently with documents written in non-wrapping IDEs, so I would expect Vale to pick these cases up - but I may be incorrect about this (though it's not mentioned in the documentation). From a brief look at the codebase this might have been in place to address this, and might not be working, but I really don't know Golang very well and can't say for sure.