Date from Filename

Hi,

sometimes I am getting a document without a Date on it, or a document, i know that Docspell will have problems to detect it.
Therefore I scan the Document with Genius Scan App, name it e.x. `2022-03-01 My crazy document` and share it with docspell-share app.

Unfortunately, Docspell is not proposing this date.

It would be cool to have a "module" to parse the filename and add the date as primary proposal since it has been "manually approved" by naming the file accordingly.