Make char.ini loading case insensitive

[ZeroTakenaka]

Describe the bug
Using Ubuntu - char.ini breaks. It's broken when it's [emotions] when it should be [Emotions]

Version:

• Ubuntu 22.04 LTS
• 2.10

[in1tiate]

more complex than it lets on - fixing requires altering the default behavior of Qt's IniFormat. as a temporary workaround, editing the inis to use the correct case may be required.