Sometimes we test endpoints that return files, and I think in those cases Restfox should only render them if it is a file that can be displayed in the browser (text and other media types?)

Currently, using Restfox for endpoints that return a binary file (e.g. an .ods or .xlsx file) will result in this.

It's not a big problem as we can still download the file with the download response function, but it does cause a bit of lag if the response file is big. I think it'll be better if Restfox can directly show a button to download the file instead of trying to render them in these cases.