Update Map Outlines - No Resizing (except oceania) (#4509)

Resolves #4450 


## Description:

- Cosmetic updates to some existing maps using the new impassable
feature. This PR is focused on maps that require no resizing (no
increase in size) to accommodate decorative impassable map outlines. A
future PR will focus on maps that require resizing.
- Form follows function. Established "metro" map style by removing
excessive water off of maps, but going no further. Edits are simple and
repeatable, but also flow with the terrain of the map. This is NOT about
the removal of rectangular maps.
- Show off impassable feature on existing maps without changing game
play.

https://youtu.be/e1gsvjl-CGE

Maps Updated
baja
bosphoruss
didier
gateway
golfofstlawrence
iceland
juandefuca
lisbon
newyork
niledelta
northwestpass
oceania
san fran
south america
straitofmalacca
surrounded
tourney 1-4



## 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



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

PlaysBadly

---------

Co-authored-by: RickD004 <realtacoco@gmail.com>

resources/maps/gulfofstlawrence/manifest.json

@@ -3,7 +3,7 @@
   "id": "GulfOfStLawrence",
   "map": {
     "height": 1348,
-    "num_land_tiles": 874011,
+    "num_land_tiles": 874013,
     "width": 1620
   },
   "map16x": {

resources/maps/oceania/manifest.json

@@ -3,18 +3,18 @@
   "id": "Oceania",
   "map": {
     "height": 1000,
-    "num_land_tiles": 194648,
-    "width": 2000
+    "num_land_tiles": 197878,
+    "width": 1664
   },
   "map16x": {
     "height": 250,
-    "num_land_tiles": 10846,
-    "width": 500
+    "num_land_tiles": 10889,
+    "width": 416
   },
   "map4x": {
     "height": 500,
-    "num_land_tiles": 46259,
-    "width": 1000
+    "num_land_tiles": 46580,
+    "width": 832
   },
   "multiplayer_frequency": 0,
   "name": "Oceania",