[feature] bookmark metadata

[masukomi]

as a user I'd like to know various pieces of metadata about my bookmarks while viewing a list so that can better understand the context of what I'm seeing.

simultaneously

as a user I'd like to not be overloaded with a billion pieces of data
so that I can easily find what I'm looking for with less cognitive load.

For example, when the bookmark was created. If it's a programming bookmark that's 5 years old in a rapidly changing framework / field then i'll value it less than a new one.

Things I want to see:

• creation date
• last archive date
• avg read time

Maybe there's a metadata ℹ️ icon that you can hover over or click on to get a little pop-over that tells you these things and otherwise stays hidden?