Support video upload#434

Currently, the only way to show videos in the documentation is either via a Youtube embed or vimeo embed.

This is kind of inconvenient, as you always need to upload the videos somewhere else first, make sure access rights are set correctly and then go to archbee and embed the link.

When writing documentation, I would prefer to just drag&drop the video into the editor and the video is being uploaded, exactly how it already works with images.
This would be similar to other tools like Github and Confluence that also support drag&drop + file upload.

it would be great if we can upload videos to S3 via archbee integration for serving files such as images and videos.

This feature sounds awesome! I’d love to use it