Update trophy text timer in fixed-timestep gamelogic()

Otherwise it, too, goes by too quickly.

desktop_version/src/Logic.cpp

@@ -1495,4 +1495,9 @@ void gamelogic()
     {
         game.act_fade--;
     }
+
+    if (obj.trophytext > 0)
+    {
+        obj.trophytext--;
+    }
 }

desktop_version/src/Render.cpp

@@ -1650,7 +1650,6 @@ void gamerender()
     if (obj.trophytext > 0)
     {
         graphics.drawtrophytext();
-        obj.trophytext--;
     }