Updated ts-rainbow colors

[dfendr]

I updated the rainbow parenthesis highlight colours to make more sense. Now, the colours follow a warming/cooling pattern. I also removed red, as I think red should be reserved for more important highlights like keywords (and I found red to be very distracting for brackets).

[dfendr]

New Colours

(ignore the underline, pictures taken from two different computers.)

Old Colours

[luisiacc]

I like it.