fix(console/host menu): the actions get their explainer line and room to breathe

The rows sat hard against the pinned title — the menu is the one form screen
with no subtitle, so the list started at the very top of the content band. It
now wears Add Host's explainer, which both says what the menu is for and is the
air that keeps the first row off the title. A pinned card explains what unpinning
does and does not touch, the same wording the Android dialog uses.

Caught by the screenshot pass, not by a test.

crates/pf-console-ui/src/screens/host_options.rs

@@ -17,7 +17,7 @@ use crate::glyphs::{Hint, HintKey};
 use crate::model::{ConsoleCmd, HostRow};
 use crate::pointer::Pointer;
 use crate::screens::{Ctx, Outbox, Screen};
-use crate::theme::Fonts;
+use crate::theme::{fg, Fonts, W};
 use crate::widgets::{ListMsg, MenuList, RowSpec};
 use pf_client_core::gamepad::{MenuEvent, MenuPulse};
 use skia_safe::{Canvas, Rect};
@@ -219,12 +219,38 @@ impl HostOptionsScreen {
         fonts: &Fonts,
         _ctx: &mut Ctx,
     ) {
+        // The explainer line, as on Add Host — it says what this menu is FOR, and the air it
+        // takes is what keeps the first row off the pinned title.
+        let blurb = if self.host.pin.is_some() {
+            "This card is a shortcut to one profile on this host. Unpinning it changes \
+             nothing about the host or the profile."
+        } else {
+            "Manage this saved host."
+        };
+        let cx = f64::from(rect.left) + f64::from(rect.width()) / 2.0;
+        fonts.centered(
+            canvas,
+            blurb,
+            W::Regular,
+            13.0 * k,
+            fg(0.55),
+            cx,
+            f64::from(rect.top) + 2.0 * k,
+            f64::from(rect.width()) * 0.72,
+        );
+        let list_rect = Rect::from_ltrb(
+            rect.left,
+            rect.top + (34.0 * k) as f32,
+            rect.right,
+            rect.bottom,
+        );
         let rows: Vec<RowSpec> = self
             .actions()
             .into_iter()
             .map(|a| RowSpec::action(self.label(a), true))
             .collect();
-        self.list.render(canvas, rect, &rows, fonts, k, dt, true);
+        self.list
+            .render(canvas, list_rect, &rows, fonts, k, dt, true);
     }
 }