Store Modernization configuration in URL

[craigsapp]

When viewing a modern score, add Mo to the config parameter in the URL:

https://polishscores.org/?id=pl-stab--5a--001-007&config=Fi{extract%20-k1}

Probably put at start of configuration string:

https://polishscores.org/?id=pl-stab--5a--001-007&config=MoFi{extract%20-k1}

[craigsapp]

Commit https://github.com/craigsapp/website-polish-scores/commit/93589dbbc6c279407558b253cf06d5edfda2af83 implements issue.

Clicking on the "M" button will add Mo to the config parameter in the URL:

https://polishscores.org?id=pl-stab--5a--001-007&config=Mo

Clicking on the "M" button to switch to original view, and Mo will be removed from the URL:

https://polishscores.org/?id=pl-stab--5a--001-007