Make vibration after timer ends more noticable

Replace the single short vibration after timer ends with three ones with longer duration. The single short pulse was very easy to miss.

Author: dariusarnold

src/displayapp/DisplayApp.cpp

@@ -372,7 +372,11 @@ void DisplayApp::Refresh() {
         } else {
           LoadNewScreen(Apps::Timer, DisplayApp::FullRefreshDirections::Up);
         }
-        motorController.RunForDuration(35);
+        motorController.RunForDuration(100);
+        vTaskDelay(pdMS_TO_TICKS(500));
+        motorController.RunForDuration(100);
+        vTaskDelay(pdMS_TO_TICKS(500));
+        motorController.RunForDuration(100);
         break;
       case Messages::AlarmTriggered:
         if (currentApp == Apps::Alarm) {