fix top bar small screens (#1377)

## Description:

Changed top by from absolute => fixed position to fix issue where topbar
was not rendered on small screens.

## 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:

evan

src/client/graphics/layers/GameTopBar.ts

@@ -79,7 +79,7 @@ export class GameTopBar extends LitElement implements Layer {
 
     return html`
       <div
-        class="absolute top-4 left-1/2 transform -translate-x-1/2 flex justify-center items-center p-1 md:px-1.5 lg:px-4 z-[1100]"
+        class="fixed top-4 left-1/2 transform -translate-x-1/2 flex justify-center items-center p-1 md:px-1.5 lg:px-4 z-[1100]"
       >
         <div class="flex justify-center items-center gap-1">
           ${myPlayer?.isAlive() && !this.game.inSpawnPhase()