feat(ui): added complete js routing for create game

added complete js routing for each button. Removed every form and replaced buttons with divs

knockoutwhistweb/app/controllers/MainMenuController.scala

@@ -36,7 +36,7 @@ class MainMenuController @Inject()(
         .getOrElse(s"${request.user.name}'s Game")
 
       val playeramount: String = (jsonBody.get \ "playeramount").asOpt[String]
-        .getOrElse(throw new IllegalArgumentException("Player amount is required and must be an integer."))
+        .getOrElse(throw new IllegalArgumentException("Player amount is required."))
 
       val gameLobby = podManager.createGame(
         host = request.user,
@@ -48,7 +48,10 @@ class MainMenuController @Inject()(
         "redirectUrl" -> routes.IngameController.game(gameLobby.id).url
       ))
     } else {
-      BadRequest("Invalid form submission")
+      BadRequest(Json.obj(
+        "status" -> "failure",
+        "errorMessage" -> "Invalid form submission"
+      ))
     }
     
   }