fix odd dimension maps (#1389)

## Description:

Remove the last column/row from a map if it has odd dimensions. Odd
dimensions were causing pathing issues when translating between mini map
& regular map.

## Please complete the following:

- [x] I have added screenshots for all UI updates
- [x] I process any text displayed to the user through translateText()
and I've added it to the en.json file
- [x] I have added relevant tests to the test directory
- [x] I confirm I have thoroughly tested these changes and take full
responsibility for any bugs introduced
- [x] I understand that submitting code with bugs that could have been
caught through manual testing blocks releases and new features for all
contributors

## Please put your Discord username so you can be contacted if a bug or
regression is found:

evan

resources/maps/straitofgibraltar/manifest.json

@@ -1,7 +1,7 @@
 {
   "map": {
-    "height": 1477,
-    "num_land_tiles": 2017096,
+    "height": 1476,
+    "num_land_tiles": 2015157,
     "width": 2902
   },
   "mini_map": {