advanced setting doesn't set passed charset setting or set any charset by default

[donald-giftagram]

Describe the bug
Advanced setting doesn't use charset set or set any charset by default

To Reproduce
Steps to reproduce the behavior:

1. Go to PDOLoad class
2. initPDO method doesn't set charset

Expected behavior
I want the charset set in the advanced setting to be part of the config passed to the PDO class when called within the initPDO method of PDOLoad class

Screenshots

Desktop (please complete the following information):

• OS: MacOS Catalina 10.15.7
• Browser: Firefox, Chrome