change defaults to reflect meta (#942)

## Description:
Changes default target troop ratio and attack size to reflect better
early game strategies in v23
## 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:

1brucben

src/core/game/PlayerImpl.ts

@@ -109,7 +109,7 @@ export class PlayerImpl implements Player {
   ) {
     this._flag = playerInfo.flag;
     this._name = sanitizeUsername(playerInfo.name);
-    this._targetTroopRatio = 95n;
+    this._targetTroopRatio = 60n;
     this._troops = toInt(startTroops);
     this._workers = 0n;
     this._gold = 0n;