radial menu attack self bugfix (#1426)

## Description:

bugfix where the radial center button was active when clicking on your
own territory.

## 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/RadialMenuElements.ts

@@ -423,7 +423,7 @@ export const centerButtonElement: CenterButtonElement = {
       }
       return false;
     }
-    return false;
+    return !params.playerActions.canAttack;
   },
   action: (params: MenuElementParams) => {
     if (params.game.inSpawnPhase()) {