Double negatives in particle command

[cs127]

Describe the bug
A clear and concise description of what the bug is.

Using the "piano roll" visualizer, some particle commands have a "double negative" in them, which is most likely a typo or a coding problem, and it causes the entire mcfunction file to not load in game. For example: instead of particle minecraft:note -9 100 0 0.5 0 0.5 1 4 force @p, there's particle minecraft:note --9 100 0 0.5 0 0.5 1 4 force @p
I don't know if this happens with other visualizers as well, but I found this bug with the piano roll one.

To Reproduce
Steps to reproduce the behavior:

1. Export a song to a datapack, with the piano roll visualizer (I don't know if other visualizers have the same problem)
2. Try to load it in game. (It won't work because of the "double negatives" in some mcfunction files)

Expected behavior
A clear and concise description of what you expected to happen.

You get the point. I really don't have to explain.

Screenshots
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