refactor: return value directly (planning#2016)

client/src/main/java/dev/fitko/fitconnect/api/domain/zbp/state/State.java

@@ -26,12 +26,12 @@ public enum State {
         return value;
     }
 
-    public static State from(Status fitConnectStatus){
+    public static State from(Status fitConnectStatus) {
         throw new IllegalStateException("not yet implemented");
     }
 
     @Override
     public String toString() {
-        return String.valueOf(value);
+        return value;
     }
 }