[Feature request] Quick search in mail app

As a Jolla user, I can search by sender/subject/body text in mail folders. EDIT: This one just needed a push up to front page (after over a year), looking at the answer and it's comments EDIT: Latest update implements search although don't think it is at folder level. That is, when am searching Sent items it seems to fetch from other folders too. A problem when you have lot of mails and want to narrow down your results.