separate global tick from draw so on tick any node can request a redraw

src/node_text_input.cpp

@@ -16,7 +16,10 @@ void NodeTextInput::on_tick(float dt)
     {
         timer = 0;
         if (m_cursor)
+        {
             m_cursor->m_display = !m_cursor->m_display;
+            app_redraw();
+        }
     }
 }