Account · Profile and access: profiles, switchers, a user menu, sessions, keys

ProfileCard shows someone at a glance; ProfileEditor edits a profile
seeded by its owner and saves once it changed, has a name and an email
that reads, with a way to put it back. AccountSwitcher and
WorkspaceSwitcher show the one in use in a row that opens a menu of the
others and a way to add one; UserMenu opens from an avatar with who is
signed in, the owner's rows and Sign out, through the new
menus::menu_under. SessionList puts this device first, signs others
out one by one or all after a second press. ApiKeyManager lists keys by
their ends, makes one by name and shows its secret once.

src/menus/mod.rs

@@ -8,6 +8,7 @@ mod pie;
 mod tests;
 
 pub use bar::MenuBar;
+pub(crate) use hosts::menu_under;
 pub use hosts::{ContextMenu, DropdownMenu, OverflowMenu, SearchableMenu, SplitButton};
 pub use model::{Menu, MenuItem};
 pub use pie::{PieItem, PieMenu};