can't find pinned note file on load if filename has uppercase characters

[freginold]

Version: 3.4.3

Operating System: Win 10

Issue: If the pinned note has any uppercase letters in its filename, Note will display "[filename] was not found" error message the next time Note loads. Seems to be because when it writes the filename to the config file, it writes it in all lowercase letters. Fix by writing to config file exactly as filename appears, or get file loader to be case insensitive?