### What? Fix the broken thumbnail for non-images for uploads in the richtext-lexical editor. **Before:**  **After:**  ### Why? As described in #6867, the thumbnail in the richtext-lexical editor is always trying to render an thumbnail image. This leads to a broken image as soon as a non-image is added. ### How? The fix was done by using the `<Thumbnail />` component from `@payloadcms/ui` Fixes #6867 --------- Co-authored-by: German Jablonski <43938777+GermanJablo@users.noreply.github.com>