Incoming nuke event filter (#2092)

## Description:

I have found most attack information to not be very useful, particularly
during the late game when MIRVs are flying and cities and ports are
being gained/lost by the hundreds.

However, even in these circumstances I would still like to see incoming
nuke messages.

Attacks filtered out, incoming atom bomb message still appears:
<img width="425" height="166" alt="Screenshot 2025-09-24 at 12 13 07 AM"
src="https://github.com/user-attachments/assets/242f4552-4509-487a-8ac2-bdd7f9cd1d40"
/>

## 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
- [ ] I have added relevant tests to the test directory
- [ ] 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:

JohnnyBravo13

src/core/game/Game.ts

@@ -789,6 +789,7 @@ export enum MessageType {
 // Message categories used for filtering events in the EventsDisplay
 export enum MessageCategory {
   ATTACK = "ATTACK",
+  NUKE = "NUKE",
   ALLIANCE = "ALLIANCE",
   TRADE = "TRADE",
   CHAT = "CHAT",
@@ -800,9 +801,9 @@ export const MESSAGE_TYPE_CATEGORIES: Record<MessageType, MessageCategory> = {
   [MessageType.ATTACK_CANCELLED]: MessageCategory.ATTACK,
   [MessageType.ATTACK_REQUEST]: MessageCategory.ATTACK,
   [MessageType.CONQUERED_PLAYER]: MessageCategory.ATTACK,
-  [MessageType.MIRV_INBOUND]: MessageCategory.ATTACK,
-  [MessageType.NUKE_INBOUND]: MessageCategory.ATTACK,
-  [MessageType.HYDROGEN_BOMB_INBOUND]: MessageCategory.ATTACK,
+  [MessageType.MIRV_INBOUND]: MessageCategory.NUKE,
+  [MessageType.NUKE_INBOUND]: MessageCategory.NUKE,
+  [MessageType.HYDROGEN_BOMB_INBOUND]: MessageCategory.NUKE,
   [MessageType.NAVAL_INVASION_INBOUND]: MessageCategory.ATTACK,
   [MessageType.SAM_MISS]: MessageCategory.ATTACK,
   [MessageType.SAM_HIT]: MessageCategory.ATTACK,