Fix labels in public lobby modifier display 🏷️ (#3456)

## Description:

Fixes two issues in the join lobby modal's modifier display:

1. **Starting Gold**: Label showed "Starting Gold (Millions)" with value
"5M", duplicating "millions". Now shows "Starting Gold" as the label,
keeping "5M" as the value.
2. **Disable Alliances**: Label showed "Disable Alliances" with value
"Enabled", which is confusing. Now shows "Alliances" as the label with
"Disabled" as the value.

Join Lobby Modal needs a general rework, I will probably make an PR

## 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:

FloPinguin

src/client/Utils.ts

@@ -159,7 +159,7 @@ export function getActiveModifiers(
       (modifiers.startingGold / 1_000_000).toPrecision(12),
     );
     result.push({
-      labelKey: "host_modal.starting_gold",
+      labelKey: "public_game_modifier.starting_gold_label",
       badgeKey: "public_game_modifier.starting_gold",
       badgeParams: {
         amount: millions,
@@ -181,8 +181,9 @@ export function getActiveModifiers(
   }
   if (modifiers.isAlliancesDisabled) {
     result.push({
-      labelKey: "host_modal.disable_alliances",
+      labelKey: "public_game_modifier.disable_alliances_label",
       badgeKey: "public_game_modifier.disable_alliances",
+      formattedValue: translateText("common.disabled"),
     });
   }
   return result;