feat(web): choose where the search sits, and controls no longer select text

- settings get a search position (left, center by default, right); the top bar
  is three zones and the suggestions open towards the free space
- buttons, chips, tabs, menu items and the home screen controls are not
  text-selectable, so clicks and double clicks no longer highlight labels

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

apps/web/src/widgets/SearchBox.tsx

@@ -27,7 +27,7 @@ type Item = {
  * Поиск в топбаре: подсказки по мере ввода, Enter — страница поиска или выбранный элемент.
  * Без фокуса и текста свёрнут в кнопку с лупой; поле раскрывается влево с анимацией.
  */
-export function SearchBox() {
+export function SearchBox({ align = 'center' }: { align?: 'left' | 'center' | 'right' }) {
   const { t } = useTranslation();
   const session = useSession();
   const navigate = useNavigate();
@@ -147,7 +147,7 @@ export function SearchBox() {
   const optionId = (i: number) => `${listId}-${i}`;
 
   return (
-    <div className={cx(s.box, expanded && s.expanded)}>
+    <div className={cx(s.box, expanded && s.expanded, s[align])}>
       <Icon src={searchIcon} size={18} className={s.icon} />
       <input
         ref={inputRef}