fix: problem to save smart-quote character in editor text

[shootermv]

closes #1222

[Nirajn2311]

This only catches one smart quote(the closing double quote). Smart quotes are basically quotes but curved. So we need to catch both double and single quotes of them and replace with normal once.

I would suggest you to look at input formatters which you can set in a TextField widget. Also its better if we set this in the editor directly. You can find the editor here https://github.com/freeCodeCamp/PhoneIDE