substitute 'Palestinian Territory' with 'Palestine' (#2471)

## Description:

Replace "Palestinian Territory" bot/nation name to just "Palestine"

## 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

Author: mef51

map-generator/assets/maps/mena/info.json

@@ -51,7 +51,7 @@
     },
     {
       "coordinates": [1409, 372],
-      "name": "Palestinian Territory",
+      "name": "Palestine",
       "strength": 1,
       "flag": "ps"
     },

resources/maps/mena/manifest.json

@@ -67,7 +67,7 @@
     {
       "coordinates": [1409, 372],
       "flag": "ps",
-      "name": "Palestinian Territory",
+      "name": "Palestine",
       "strength": 1
     },
     {