How do I select a different public gateway when copying a file's link?

Advanced users probably don't need a piece of interface made for this, but it would be a good quality of life feature to have to be able to add a custom public gateway for sharing files on that node instead of IPFS' default one. The default node is quite slow because of all the traffic so offloading it to [Cloudflare-IPFS](https://cloudflare-ipfs.com/) can help things for everyone.