Adds map "Tierra del Fuego" (featuring impassable terrain) (#4437)

## Description:

Adds map of Tierra del Fuego, the southernmost tip of South America:
https://en.wikipedia.org/wiki/Tierra_del_Fuego

This map uses impassable terrain to stylize the borders of this map into
a triangular shape, this zone is known as "end of the world" so i
thought it would be visually fitting if the borders converged at the
bottom of the map.

800k land tiles similar to Caucasus.

This map has a lot of islands, incluiding the Falklands for people who
enjoy island-plays, and also a chokepoint (the strait of Magallanes) for
piracy.

Also adds flags of Chilean and Argentinian provinces for the map and the
menu.

<img width="818" height="544" alt="image"
src="https://github.com/user-attachments/assets/59812868-7514-4e03-86a2-072cf4013aeb"
/>


https://github.com/user-attachments/assets/acc15020-bd7a-49e0-a504-8575a1e74f75

## 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:

tri.star1011

resources/countries.json

@@ -186,6 +186,11 @@
     "continent": "Europe",
     "name": "Asturias"
   },
+  {
+    "code": "Atacama",
+    "continent": "South America",
+    "name": "Atacama"
+  },
   {
     "code": "Athens",
     "continent": "Europe",
@@ -458,6 +463,11 @@
     "continent": "Africa",
     "name": "Central African Republic"
   },
+  {
+    "code": "Chaco",
+    "continent": "South America",
+    "name": "Chaco"
+  },
   {
     "code": "td",
     "continent": "Africa",
@@ -508,6 +518,11 @@
     "continent": "North America",
     "name": "Choctaw"
   },
+  {
+    "code": "Chubut",
+    "continent": "South America",
+    "name": "Chubut"
+  },
   {
     "code": "Chuvashia",
     "continent": "Europe",
@@ -572,11 +587,26 @@
     "continent": "Oceania",
     "name": "Cook Islands"
   },
+  {
+    "code": "Coquimbo",
+    "continent": "South America",
+    "name": "Coquimbo"
+  },
+  {
+    "code": "Cordoba (Argentina)",
+    "continent": "South America",
+    "name": "Cordoba (Argentina)"
+  },
   {
     "code": "cordoba",
     "continent": "Europe",
     "name": "Cordoba"
   },
+  {
+    "code": "Corrientes",
+    "continent": "South America",
+    "name": "Corrientes"
+  },
   {
     "code": "Corsica",
     "continent": "Europe",
@@ -761,6 +791,11 @@
     "continent": "Europe",
     "name": "England"
   },
+  {
+    "code": "Entre Rios",
+    "continent": "South America",
+    "name": "Entre Rios"
+  },
   {
     "code": "gq",
     "continent": "Africa",
@@ -852,6 +887,11 @@
     "continent": "North America",
     "name": "Florida"
   },
+  {
+    "code": "Formosa",
+    "continent": "South America",
+    "name": "Formosa"
+  },
   {
     "code": "1_Fortriu",
     "continent": "Europe",
@@ -1175,6 +1215,11 @@
     "continent": "Asia",
     "name": "Jordan"
   },
+  {
+    "code": "Jujuy",
+    "continent": "South America",
+    "name": "Jujuy"
+  },
   {
     "code": "Kachin",
     "continent": "Asia",
@@ -1250,6 +1295,11 @@
     "continent": "Africa",
     "name": "Khemet"
   },
+  {
+    "code": "Kingdom of Araucania and Patagonia",
+    "continent": "South America",
+    "name": "Kingdom of Araucania and Patagonia"
+  },
   {
     "code": "Kingdom of Egypt",
     "continent": "Africa",
@@ -1334,6 +1384,21 @@
     "continent": "Asia",
     "name": "Kyrgyzstan"
   },
+  {
+    "code": "La Araucania",
+    "continent": "South America",
+    "name": "La Araucania"
+  },
+  {
+    "code": "La Pampa",
+    "continent": "South America",
+    "name": "La Pampa"
+  },
+  {
+    "code": "La Rioja",
+    "continent": "South America",
+    "name": "La Rioja"
+  },
   {
     "code": "Labuan",
     "continent": "Asia",
@@ -1431,6 +1496,16 @@
     "continent": "Europe",
     "name": "Lithuanian SSR"
   },
+  {
+    "code": "Los Lagos",
+    "continent": "South America",
+    "name": "Los Lagos"
+  },
+  {
+    "code": "Los Rios",
+    "continent": "South America",
+    "name": "Los Rios"
+  },
   {
     "code": "Louisiana",
     "continent": "North America",
@@ -1456,6 +1531,11 @@
     "continent": "Europe",
     "name": "Macedonia"
   },
+  {
+    "code": "Magallanes",
+    "continent": "South America",
+    "name": "Magallanes"
+  },
   {
     "code": "manitoba",
     "continent": "North America",
@@ -1566,6 +1646,11 @@
     "continent": "Asia",
     "name": "Median Empire"
   },
+  {
+    "code": "Mendoza",
+    "continent": "South America",
+    "name": "Mendoza"
+  },
   {
     "code": "1_Mercia",
     "continent": "Europe",
@@ -1596,6 +1681,11 @@
     "continent": "North America",
     "name": "Minnesota"
   },
+  {
+    "code": "Misiones",
+    "continent": "South America",
+    "name": "Misiones"
+  },
   {
     "code": "Mississippi",
     "continent": "North America",
@@ -1720,6 +1810,11 @@
     "continent": "Europe",
     "name": "Netherlands"
   },
+  {
+    "code": "Neuquen",
+    "continent": "South America",
+    "name": "Neuquen"
+  },
   {
     "code": "neuragic_empire",
     "name": "Neuragic Empire"
@@ -2152,6 +2247,11 @@
     "continent": "South America",
     "name": "Rio de Janeiro"
   },
+  {
+    "code": "Rio Negro",
+    "continent": "South America",
+    "name": "Rio Negro"
+  },
   {
     "code": "SPQR",
     "continent": "Europe",
@@ -2231,6 +2331,11 @@
     "continent": "North America",
     "name": "Saint Vincent and the Grenadines"
   },
+  {
+    "code": "Salta",
+    "continent": "South America",
+    "name": "Salta"
+  },
   {
     "code": "Sami flag",
     "continent": "Europe",
@@ -2241,6 +2346,16 @@
     "continent": "Oceania",
     "name": "Samoa"
   },
+  {
+    "code": "San Juan",
+    "continent": "South America",
+    "name": "San Juan"
+  },
+  {
+    "code": "San Luis",
+    "continent": "South America",
+    "name": "San Luis"
+  },
   {
     "code": "sm",
     "continent": "Europe",
@@ -2251,10 +2366,20 @@
     "continent": "South America",
     "name": "Santa Cruz"
   },
+  {
+    "code": "Santa Fe",
+    "continent": "South America",
+    "name": "Santa Fe"
+  },
   {
     "code": "santa_claus",
     "name": "Santa Claus"
   },
+  {
+    "code": "Santiago del Estero",
+    "continent": "South America",
+    "name": "Santiago del Estero"
+  },
   {
     "code": "st",
     "continent": "Africa",
@@ -2558,6 +2683,11 @@
     "continent": "Asia",
     "name": "Tibet"
   },
+  {
+    "code": "Tierra del Fuego",
+    "continent": "South America",
+    "name": "Tierra del Fuego"
+  },
   {
     "code": "tl",
     "continent": "Asia",
@@ -2598,6 +2728,11 @@
     "continent": "Asia",
     "name": "Trucial States"
   },
+  {
+    "code": "Tucuman",
+    "continent": "South America",
+    "name": "Tucuman"
+  },
   {
     "code": "tn",
     "continent": "Africa",