fix: Export correct MapInfoResponse type

[gmaclennan]

The exported MapInfo type is not the same type as the /:mapId/info response type. Currently MapInfo is an internal type, and the response type is backwards compatible with the previous map server from @comapeo/core. This PR adds a new type export MapInfoResponse, deprecates the MapInfo type (to avoid a breaking change). Also adds a test that validates the response type on the /:mapId/info route.

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 0.00%. Comparing base (ae7bc34) to head (ca433ce).
⚠️ Report is 1 commits behind head on main.

Additional details and impacted files

@@    Coverage Diff     @@
##   main   #34   +/-   ##
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