feat: Adding Distance Leaflet App (Take 2)

[MichaelDykesBC]

Description

Added new page to application for Leaflet and Turf.js distance testing (including new html page and new TypeScript script).

New dependencies include:

• Turf.js
• Leaflet Easy Button
• Underscore

Fixes # (issue)

Type of change

Please delete options that are not relevant.

• New feature (non-breaking change which adds functionality)

How Has This Been Tested?

Tested using Node and Webpack in Visual Studio Code on my desktop.

Checklist

• I have read the CONTRIBUTING doc
• I have performed a self-review of my own code
• I have commented my code, particularly in hard-to-understand areas
• I have made corresponding changes to the documentation
• My changes generate no new warnings
• I have added tests that prove my fix is effective or that my feature works
• New and existing unit tests pass locally with my changes
• Any dependent changes have already been accepted and merged

Further comments

Was asked to do this as a test, if it's broken hope we can work together to fix it! (I'm new)

---

Thanks for the PR!

Deployments, as required, will be available below:

• Frontend

Please create PRs in draft mode. Mark as ready to enable:

• Analysis Workflow

After merge, new images are deployed in:

• Merge Workflow