Fixed loading instruction files in packaged builds

[machinewrapped]

Instruction files are now loaded as a resource file, which means the packaged builds can find them again.

The prompt is now automatically updated from the selected instruction file when it changes.

A --debug command line option has been added to the GUI to write full debug logs to the log file.

Fixed parsing blank lines in the "substitutions" section of project settings.

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This discussion was created from the release Fixed loading instruction files in packaged builds.

[machinewrapped]

This was caused by the change in PyInstaller's behaviour to put everything except the executable in an "_internal" folder. Changed the GUI to treat instruction files as a resource so that it can find them wherever PyInstaller decides to put them.