Fix Minor Bugs

[Cadlaxa]

• Fixes Open Project/Export Location where it fails to open the project location if the path has spaces to it
• Fixes note's brush color if the phoneme has an error (the note and phonemizer tag also greys out of there's a phoneme error instead of the same AccentBrush color)
• [MAJOR]: Fixes phoneme error to not obstruct the phoneme override function (a short error message in the tooltips ,Alt + Click to show the error messagebox)
• Fixes expression shadowing not visible when switching to other expressions (beta-bug)