TIFlash does not handle spaces in Python path

[webbcam]

TIFlash fails to launch JS script when the Python installation path contains a space.

Context

On Windows machine, when installing Python for "All Users", the default installation location is:
C:\Program Files\Python37 or C:\Program Files (x86)\Python37
Currently TIFlash does not wrap the Python installation path in quotes when passing to the main.js script.

Expected result

TIFlash should handle pass the Python installation path correctly even when including a space.

Possible Fix

In the call_dss() (in utils/dss.py) wrap the 'main_js' and 'cwd' in quotes before placing in the command for passing to subprocess.

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