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/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)
 	}