text: Title: MPL Cropping
  Body: There are some issues with when creating reports with seaborn or MPL plots, where they appear cropped on either axes. Generally making sure that the matplotlib gcf has `.tightlayout()` applied has fixed the issue, but this doesn't always lead to expected results.
  
  It seems this is a common problem when using matplotlib's `save_fig` function, which we use under the hood:
  - https://stackoverflow.com/questions/45239261/matplotlib-savefig-text-chopped-off
  - https://stackoverflow.com/questions/6774086/why-is-my-xlabel-cut-off-in-my-matplotlib-plot
  
  This isn't strictly a datapane bug, but we can probably improve the user experience here by adding some padding or making the layout tighter by default.