[Bug] Don't find python library from WindowsApps dir

I accidentally installed the Python library from Windows App which was the culprit for me. I am receiving this error message:

/c/Users/shivapoudel/.dotfiles/meta/dotbot/bin/dotbot: line 10: /c/Users/shivapoudel/AppData/Local/Microsoft/WindowsApps/python3: Permission denied
/c/Users/shivapoudel/.dotfiles/meta/dotbot/bin/dotbot: line 10: /c/Users/shivapoudel/AppData/Local/Microsoft/WindowsApps/python3: Permission denied

Later, I debug and found https://github.com/anishathalye/dotbot/blob/master/bin/dotbot#L10-L12 check is locating me there. Can this check be modified so that which python3 is located from other place rather than C:\Users\shivapoudel\AppData\Local\Microsoft\WindowsApps

[anishathalye]

Hmm, so this seems like a problem with your system configuration rather than in Dotbot itself?

Since we aim to be compatible with both Python 2 and Python 3, it seems fine to try python before trying python2 or python3 specifically. This way, we’ll be using the user’s preferred python version. I think we still want to prefer Python 3 over Python 2, however. This is done in 9a8d292681ac540894dce3fe998be0068dfa2df5.

[shivapoudel]

@anishathalye I had installed Python from the app store but later found Microsoft Store python package is currently considered unstable. Thus I have installed the python from its main site. The problem is with App Store because I can uninstall the python but some binary files for python are never been deleted. If I delete once, they will re-appeared after a few moments. Thus while setting up dotbot, I have to always delete below screenshot python files and process further, which is being the hassle for me.

You can see 0KB size binaries for python is located in the app directory. Thus the PR I have created resolves this issue.