feat: show and hide in the help bar, the same width so it doesn't shift (#24)

Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>

internal/ui/app/app_test.go

@@ -988,7 +988,7 @@ func TestRebindingShowsEverywhere(t *testing.T) {
 	if !strings.Contains(scr, "z to reveal") || strings.Contains(scr, "space to reveal") {
 		t.Errorf("detail hint doesn't follow the binding:\n%s", scr)
 	}
-	if !strings.Contains(lastLine(scr), "z reveal") || strings.Contains(lastLine(scr), "reveal/hide") {
+	if !strings.Contains(lastLine(scr), "z show") {
 		t.Errorf("help bar: %q", lastLine(scr))
 	}
 	d.keys("z")

internal/ui/app/help.go

@@ -39,7 +39,8 @@ type contextHelp struct {
 	account  bool // the fourth pane shows Fields (fields.go)
 	of       pane // what the fourth pane describes
 	// revealed, when set, says whether the selected value is shown, so
-	// the reveal key says just what it'll do: reveal or hide.
+	// the reveal key says just what it'll do: show or hide, the same
+	// width so the bar doesn't shift.
 	revealed *bool
 }
 
@@ -68,7 +69,7 @@ func (c contextHelp) ShortHelp() []key.Binding {
 	default:
 		reveal := k.Reveal
 		if c.revealed != nil {
-			reveal = key.NewBinding(key.WithKeys(k.Reveal.Keys()...), key.WithHelp(k.Reveal.Help().Key, map[bool]string{false: "reveal", true: "hide"}[*c.revealed]))
+			reveal = key.NewBinding(key.WithKeys(k.Reveal.Keys()...), key.WithHelp(k.Reveal.Help().Key, map[bool]string{false: "show", true: "hide"}[*c.revealed]))
 		}
 		b = append(b, reveal, k.Copy, k.Share, k.ShareMenu, k.Versions, k.Favourite, k.Filter)
 	}

internal/ui/app/layout_test.go

@@ -136,7 +136,7 @@ func TestLayoutIsSaved(t *testing.T) {
 func TestContextHelpBar(t *testing.T) {
 	t.Parallel()
 	d := newDriver(t)
-	if bar := lastLine(d.screen()); !strings.Contains(bar, "S share") || !strings.HasSuffix(strings.TrimSpace(bar), "? help • q quit") || strings.Contains(bar, "space reveal") {
+	if bar := lastLine(d.screen()); !strings.Contains(bar, "S share") || !strings.HasSuffix(strings.TrimSpace(bar), "? help • q quit") || strings.Contains(bar, "space show") {
 		t.Errorf("Sources help bar: %q", bar)
 	}
 	d.keys("3")