I think I understand this a little better now. The behaviour in my phone and on my PC are a little different even though they both use Chrome.
I guess the "Go" is coming from my phone's Chrome browser. When I click on the ui_text_input number (I do not see the up / down arrows as I see on my PC), but a numeric keypad appears. Not sure if this is from Chrome or my cell phone? In order to close the numeric keypad, I need to tap on something outside of the popup. Clicking on "GO" does not close the popup. If I accidently changed the number, I have to put it back to what it was or it will be sent to Node-Red.
On my PC, I can directly enter values or if I move my cursor to the right of ui_text_input I see the up / down arrows.
I will have to look into this (perhaps something on my cell phone) but this is not exactly the best behaviour as it can make changes inadvertently. I think it has more to do with my Samsung cell phone or Chrome?
My bad. Thanks for getting back to me so quickly.