add mobile bomb flip support (#2737)

closes #2678 

## Description:

Update to enable bomb flip support by mobile users too

<img width="420" height="666" alt="image"
src="https://github.com/user-attachments/assets/eb2155a4-2012-4f40-8caa-bd23ebd28521"
/>


----------------------------------------------------------------------------------------------------------------------------------------------------

Also, I slightly updated the player panel to make it more even and take
up less space;
- removed the huge header bar which took up too much space
- fixed ui divider spacing

Before:
<img width="372" height="179" alt="image"
src="https://github.com/user-attachments/assets/2cf82cda-d466-4911-be4f-36eb6e788d5b"
/>
After:
<img width="383" height="134" alt="image"
src="https://github.com/user-attachments/assets/4d827221-f456-48fe-940b-a9ba84d1f4a5"
/>

## 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:

w.o.n

src/client/InputHandler.ts

@@ -89,7 +89,9 @@ export class GhostStructureChangedEvent implements GameEvent {
   constructor(public readonly ghostStructure: UnitType | null) {}
 }
 
-export class SwapRocketDirectionEvent implements GameEvent {}
+export class SwapRocketDirectionEvent implements GameEvent {
+  constructor(public readonly rocketDirectionUp: boolean) {}
+}
 
 export class ShowBuildMenuEvent implements GameEvent {
   constructor(
@@ -432,7 +434,8 @@ export class InputHandler {
 
       if (e.code === this.keybinds.swapDirection) {
         e.preventDefault();
-        this.eventBus.emit(new SwapRocketDirectionEvent());
+        const nextDirection = !this.uiState.rocketDirectionUp;
+        this.eventBus.emit(new SwapRocketDirectionEvent(nextDirection));
       }
 
       // Shift-D to toggle performance overlay