CVE-2021-42574: Additional Unicode highlights

[shaneray]

Was reported to me that my extension catches all cases in the CVE except for homoglyph-functions. I propose we highlight these characters in orange to separate them from the “invisible” characters that are highlighted in red.

Sources: https://trojansource.codes/ https://github.com/nickboucher/trojan-source https://nvd.nist.gov/vuln/detail/CVE-2021-42574