Shifting moving axes/ making plot smaller

In my app, half of my y axis label is currently displayed. I was wondering if I could shift the title of the y axis closer to the axis so that the full label appears. In addition making the plot a smaller size would be a good alternative too. Here is what it looks like:


I think this is either an issue with the plot margins, or the way you're rendering it in the app. Please provide us the code and a minimal reproducible example using this guide: