Movies and Series: Enter adds, a no longer does

The status bar only ever named Enter, while the hint for searching
releases of a title not in the library said (a). Enter is now the one
key for adding, and the hint says Enter.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

internal/ui/search.go

@@ -125,9 +125,6 @@ func newSearchView(app *App, be backend) *searchView {
 				v.reloadList()
 				return nil
 			}
-		case 'a':
-			v.add(v.list.GetCurrentItem())
-			return nil
 		case 'i':
 			v.interactive(v.list.GetCurrentItem())
 			return nil
@@ -347,7 +344,7 @@ func (v *searchView) interactive(i int) {
 	}
 	r := v.results[i]
 	if !r.inLibrary() {
-		v.app.SetMessage(fmt.Sprintf("[yellow]Add %s to %s first (a), then search for releases", tview.Escape(r.title()), v.be.name()))
+		v.app.SetMessage(fmt.Sprintf("[yellow]Add %s to %s first (Enter), then search for releases", tview.Escape(r.title()), v.be.name()))
 		return
 	}
 	v.be.interactive(v, r)