Make parties 11-15 configurable in NA

Fixes #2155

Author: reconman

app/src/main/java/io/github/fate_grand_automata/ui/battle_config_item/PartySelection.kt

@@ -39,7 +39,7 @@ fun PartySelection(config: BattleConfigCore) {
     val isSelectionExtended by remember {
         derivedStateOf {
             when (server.asGameServer()) {
-                null, is GameServer.Jp, GameServer.Cn -> true
+                null, is GameServer.Jp, GameServer.Cn, is GameServer.En -> true
                 else -> false
             }
         }

scripts/src/main/java/io/github/fate_grand_automata/scripts/locations/Locations.kt

@@ -22,6 +22,7 @@ class Locations @Inject constructor(
 ) : IScriptAreaTransforms by scriptAreaTransforms {
 
     // 9th anniversary changes the repeat screen and extends to 15 parties
+    // don't forget to edit PartySelection.isSelectionExtended as well
     private val afterAnni9 = gameServer is GameServer.Jp || gameServer is GameServer.Cn || gameServer is GameServer.En
 
     val continueRegion = if (afterAnni9)