Allow variables as input for the max_width property for the path segment.

[awerebea]

Code of Conduct

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What would you like to see changed?

I'm using the powerlevel style for the path segment because I want it to shorten long paths so they fit on one line in my current terminal window.

It would be great if I could set the value of the path segment's max_width property dynamically based on the width of my current terminal window, so as not to shorten paths that already fit into the current screen width.

- type: prompt
  alignment: left
  segments:
  - type: path
    style: plain
    properties:
      style: powerlevel
      max_width: "{{ .Env.POSH_MAX_PATH_WIDTH }}"
    template: "{{ .Path }}"