Fix regex to extract the client version

[hingston]

Description

Updates the regex to work with the current client version.

Fixes #524

The original pattern r"window\.__twilightBuildID=\"([0-9A-Fa-f]{8}-[0-9A-Fa-f]{4}-4[0-9A-Fa-f]{3}-[89ABab][0-9A-Fa-f]{3}-[0-9A-Fa-f]{12})\";" didn't match because it strictly expected an exact format, including specific UUID segments and a trailing semicolon. The adjusted pattern r'window\.__twilightBuildID\s*=\s*"([0-9a-fA-F]{8}-[0-9a-fA-F]{4}-[0-9a-fA-F]{4}-[0-9a-fA-F]{4}-[0-9a-fA-F]{12})"' is more flexible, allowing for optional whitespace around the equal sign and matching any valid UUID.

Type of change

Please delete options that are not relevant.

• Bug fix (non-breaking change which fixes an issue)

How Has This Been Tested?

I've ran it locally.

Checklist:

• My code follows the style guidelines of this project
• I have performed a self-review of my code
• I have commented on my code, particularly in hard-to-understand areas
• I have made corresponding changes to the documentation (README.md)
• My changes generate no new warnings
• Any dependent changes have been updated in requirements.txt