Built-in low-res world map

[orblivion]

Make a very low resolution (small data size) world map that's part of the Sandstorm package. That way it looks nicer on startup, and users can search for cities and such.

• [ ] Generate Tiles: Zoom, only level 1 or 2, the least we can get away with
• [ ] Generate Search: Nodes tagged with place only, which would be And even then, maybe cut that down to cities towns etc.
• [ ] Include this in the data generation process because it follows the same steps as the other data generation
• [ ] Reference it directly by the app so that it gets added to the spk
• [ ] Don't regress on visibility of borders (see #31)

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Given that #31 was such a success, the only launch items at this point should be generating search, and possibly building it directly into the app (though I'm starting to question the second one irrespective of launch). Not worth even rendering the cities on the map.

[orblivion]

Okay search for countries, states, and major cities now built into the map. This means that when you start a new map, you can search for your target city, and it'll point you to it. It'll be zoomed out such that you can pick a region to download that contains it. If you search for the city again after downloading the region, it'll be zoomed in a bit more, to "city level", but not as zoomed in as if you were searching for points of interest within the city.

I tried this on a couple of my older maps, where the regions were not the squares. There were some glitches. You may want to make new maps to try this.

And with this, I'm not closing the ticket, but it's good enough for launch so I'm removing it from the milestone.