Add Hmong, Ojibwe, and Dakota

[benjifs]

What

• Add Hmong, Ojibwe, and Dakota in language select and locale for moment.
• Moved locales to translator.js.
• Fix minor typo in README that was causing Environment Variables to not be linked

Why

Locales could be kept in either spot but this way we can set the locales and language all in one spot.

Ensure the following interactions work as expected. Please test using a mobile form factor.

• [x] Tapping on a marker on the map displays information about the marker in a popup.
• [x] Tapping the "Show list of locations" button replaces the map view with a list view.
• [x] Tapping an item in the list replaces the list view with a map view, and navigates the map to the tapped item on the map.
• [x] Tapping one of the ✅'s in the legend filters items on the map and in the list.
• [x] Changing the language to spanish changes things on the page.
• [x] Clicking the Help/Info button opens and closes a menu with information.
• [x] Clicking the X Close button on the Help/Info screen closes the modal.

Check the app in the following web browsers:

• [x] Chrome
• [x] Firefox
• [ ] Edge
• [ ] Safari

[kmarekspartz]

@benjifs can we include Dakota at the same time as well?

We may want to include the fallback to ISO code as suggested here before merging: https://github.com/Twin-Cities-Mutual-Aid/twin-cities-aid-distribution-locations/pull/133#pullrequestreview-425842420

[benjifs]

Dakota added.

@kmarekspartz not sure about the icons now but the SVG approach I was trying wasn't that much different so this seemed easier

[kmarekspartz]

Ah, when I viewed the testing instance I had a [?] image not loaded error, but it worked now. Nice!