Sanitize form submissions

I was adding a dashicon, e.g. dashicons-menu, string in the admin ui to set a new icon and after saving the pod that there was no icon.

Upon inspecting I realised that when I pasted the text string there was a preceding blank space ” dashicons-menu”. Deleted it and saved, icon appeared successfully.

Adding a sanitize function to all form submissions from the admin interface of pods to strip preceding and trailing blank spaces would be super helpful.