Popup domain validation failing for domains with numbers in the first two characters

[WesleyBranton]

Domain validation is failing in a very specific situation in the toolbar popup. If the domain meets these requirements, it will be classified as invalid:

• Has a subdomain
• Has a non-letter character in the first 2 characters
  • Excludes the first subdomain

An example of a domain that fits into this category is www.w3schools.com.

Custom-Scrollbar/src/popup/script.js

Line 60 in e5959f4

const domainRegex = /^[a-zA-Z0-9][a-zA-Z0-9-]{1,61}[a-zA-Z0-9](?:\.[a-zA-Z]{2,})+$/;