I don't know what this means. "insert images into content/description field"

I'm going to guess that you want me to install Froala, which I'm not going to do. It's worse in some cases.  

Example:
https://una.io/page.php?i=item&id=5232

You can't even click on the image that you posted. It's un-readable. unless you right click and view which my users will not know how to do.