Add crash and debug information

[alexwkleung]

Iris should generate crash and debug information that is stored in a .txt file.

Sometimes, users may have issues with the app for an unknown reason. Uploading the crash (if applicable) or debug information from the .txt file when asking for assistance via Issues or Discussions can possibly help identify the core issue alongside their own explanation.

With that being said, Iris has to be able to detect an app crash in order for the .txt file to be generated. The debug information is generated dynamically through a context menu or button press, so the mechanism isn't automatic. While these might be a little tricky to implement, it makes the app more native.