Add energy dashboard title

esphome/energymonitor.yaml

@@ -507,6 +507,7 @@ display:
                     "-- W");
         }
       } else if (id(page_index) == 0) {
+        it.print(12, 10, id(font_small), Color::WHITE, "Energie");
         // One shared gauge with two parallel curved bars: grid on the outside, solar inside.
         const Color gauge_background = Color(42, 42, 42);
         const int gauge_center_x = 160;