Add a context menu similar to Gmail when doing a search to easily create complex search.

This would address a lot of other users inquiry about ways to improve search like the ones I quickly found in related topics:

https://missive.canny.io/feature-requests/p/search-by-subject

https://missive.canny.io/feature-requests/p/search-attachments

https://missive.canny.io/feature-requests/p/search-limited-to-certain-date-range

https://missive.canny.io/feature-requests/p/create-rules-from-search-filters-and-apply-them-retroactively-to-previous-e-mail

https://missive.canny.io/feature-requests/p/more-filters