T17: a font saves, and a settings file starts, only when gpui loads it as the terminal draws it, so the terminal never falls back without a word; numbers save on Enter, on leaving the field and on each step; after a refused change a number field drops its draft and the font picker shows the saved family again

src/term/mod.rs

@@ -18,4 +18,4 @@ mod unix;
 mod view;
 
 pub use pty::{Events, Launch, Listener, Pty, PtyEvent, config, fit, spawn};
-pub use view::{BLINK, ICONS, MONO, TerminalEvent, TerminalView};
+pub use view::{BLINK, ICONS, MONO, TerminalEvent, TerminalView, load_font};