Display links inserted from smart picker as page title/file name

[NikoKS]

This request has been made in collectives Issues page https://github.com/nextcloud/collectives/issues/949, but was mistakenly addressed by https://github.com/nextcloud/text/issues/5838.

In short, it would be better when links added by smart picker to another pages to have the title/file name of the page picked. This is similar to the behavior when referring to a github page from another text. For example, I want to refer an issue in a sentence like #5838, instead of embedding an entire preview of the page in another line.

Having a preview of the page would make sense when the link is not in the middle of a sentence. But when it is, it would be better to only show the title.