Update MUO boundary

[jlefkoff]

Description

Updated MUO RAPCON boundary with data from real-world SOP.

Motivation and Context

The eastern shelf called the "Muni Shelf" was missing from the boundary. The real-world chart below depicts this boundary.

How to prove the effect of this PR?

See old vs. new polygon below as displayed in geojson.io

Old Polygon.	New Polygon

Additional info

Is this a breaking change?

• Breaking change (fix or feature that would cause existing functionality to not work as expected)

Checklist

• My change or addition follow the formatting standard of the project.
• I am on the list of approved contributors.

[kmoberg]

Please follow the directions in the Pull Request template, and make sure to include a screenshot of the change and at least one of what it should look like. We don't have access to the SOP, making it impossible for us to compare it without.

[jlefkoff]

@kmoberg I've updated the PR description to include more information. Let me know if you need anything else for this to be merged. Thanks!