Minimize the sender/sendee menu in Composer
When composing an email in the Proton Mail web app, the top menu (including From, To, Subject, and formatting options) takes up nearly half of my little laptop screen. I need more screen real estate to write my emails. I'd like a [^] button to minimize these items once I have them set, and when minimized, a [v] button should take its place to allow the user to open the menu again.
It would be nice to further improve the "compact" interface and make it more space-optimized or offer another tier that make the UI even more condensed.