Record human/nation/bot conquests (#2949)

## Description:

Conquests are currently mixing all player types.

This is not ideal as people wonders why a 50 player game can lead to
hundred of kills.
Having separate records can also help with achievements and better
balancing.

This PR splits the conquests record into 3 categories: human, nations
and bots.

It is linked to this infra PR:
https://github.com/openfrontio/infra/pull/246

<img width="895" height="497" alt="image"
src="https://github.com/user-attachments/assets/66e49100-8114-4406-84ab-d9627355956d"
/>

While the recorded data make a distinction between bots/nations, it's
only displayed here as a single "bot" category.

## 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

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

IngloriousTom

tests/Stats.test.ts

@@ -162,14 +162,14 @@ describe("Stats", () => {
     expect(stats.stats()).toStrictEqual({
       client1: {
         gold: [0n, 1n],
-        conquests: 1n,
+        conquests: [1n],
       },
     });
     stats.goldWar(player1, player2, 1);
     expect(stats.stats()).toStrictEqual({
       client1: {
         gold: [0n, 2n],
-        conquests: 2n,
+        conquests: [2n],
       },
     });
   });