Fix whitespace character in RegExps (#5590)
Fix whitespace character in RegExps (#5590)

- So due to string formatting within javascript, you need to have a double slash `//` to have have in the string a `/` so a `/s` becomes `s` as it isn't one of the reserved characters(ex `n` `t` `r`) but when you have in a string `//s` it will become `/s`.
alexanderby/darkreader,alexanderby/darkreader,darkreader/darkreader,alexanderby/darkreader,darkreader/darkreader,darkreader/darkreader