SVG upload in chat fails silently; grey out unsupported formats

When uploading a document inside the chat, I can select an SVG file but then as I upload it, nothing appears. I would expect the unavailalbe file formats to be greyed out in my file browser.

Uploading a document inside the chat allows selecting an SVG file, but once uploaded nothing appears. Unsupported file formats should be greyed out in the file browser so they cannot be selected.