[Custom themes] Let's make it possible to set the map center, extent, zoom, pitch, and bearing for a community in Theme

[rudokemper]

Now that we have a Theme model in Rails, let's make it possible to set the default map center, boundaries, zoom, pitch, and bearing for a community. Currently, these are hard coded in Map.jsx.

Acceptance criteria:

• [ ] Admin user logs into Terrastories and goes to the Theme menu.
• [ ] There are fields for
  • center latitude and longitude
  • southwest boundary latitude and longitude
  • northeast boundary latitude and longitude
  • zoom level
  • pitch
  • bearing
• [ ] Entering values for these overrides whatever is set in Map.jsx.
• [ ] Add validation tests for each field:
  • Center latitude is between -90 and 90, longitude is between -180 and 180.
  • Southwest boundary latitude is between -90 and 90, longitude is between -180 and 180.
  • Northeast boundary latitude is between -90 and 90, longitude is between -180 and 180.
  • Zoom is between 0 and 22.
  • Pitch is between 0 and 85.
  • Bearing is between -180 and 180.

[maxkadel]

Interested in working on this one!

(also, if you put spaces between the []s you can use the checkmarks)

[maxkadel]

If these values aren't set in the theme, what should the defaults be? The current defaults work well with the seed set, which is set to the 2 US coasts.

[lauramosher]

@rudokemper Do you have thoughts on this?

[rudokemper]

Yep, because of the seed set I think the current defaults are fine. Thanks @maxkadel.