[Feature] Search: support natural language dates (e.g. "May 2021", "Mai 2021")

I have searched the existing feature requests, both open and closed, to make sure this is not a duplicate request. • Yes The feature Allow the main search bar to understand dates typed in natural language and turn them into a date filter, as Google Photos does. Examples: • "May 2021" -> all assets taken between 2021-05-01 and 2021-05-31 • "2021" -> the whole year • "beach May 2021" -> a "beach" smart search restricted to that month • Optionally, an explicit operator such as date:2021-05, after:2021-01-01 or before:2021-06-30. Today the search bar is a semantic (CLIP) search over image content, so typing a date does not filter anything. The date range filter in the search panel does exist, but it requires opening the filters and picking a start and end date, which is slow when you just want "photos from May 2021". Why • It is one of the most common ways people look f…