Use Mapbox maps

[vsmart]

Before: no working map :(

After: with fixed Mapbox map

• Closes Google Maps error #60
• Switches over from Google maps to Mapbox GL
• Adds a little ClojureBridge map marker

Todo before merging

• Get a review
• Decide on zoom level: do you like what's in the screenshot? Or should it be more zoomed-in for the locals to see where exactly the location is?
• Set up a Mapbox account with custom token for this project ( I tested with a personal token)
• Token storage strategy: should we just store it in the repository? Or how we can store it securely?

[vsmart]

Regarding the token question, I did some research and the short answer is: there is no way to hide the secret using github pages. The way to secure the token is by setting strict scopes on the mapbox-side - then, it's also ok to put the token into the public repo. The token will be public on the website anyway, since this is client-side.

Source 1: https://stackoverflow.com/questions/42753225/how-to-safely-store-google-maps-api-key-in-public-repo-for-github-pages
Source 2: https://stackoverflow.com/questions/21939713/hide-api-key-for-a-github-page/21941683#21941683

[davidchambers]

Thank you for fixing this problem, Franka! 🎉

[davidchambers]

🎉