fix: remove misleading clear buttons and improve SimpleSelect UX (#23791)

web/app/components/header/account-setting/language-page/index.tsx

@@ -70,6 +70,7 @@ export default function LanguagePage() {
           items={languages.filter(item => item.supported)}
           onSelect={item => handleSelectLanguage(item)}
           disabled={editing}
+          notClearable={true}
         />
       </div>
       <div className='mb-8'>
@@ -79,6 +80,7 @@ export default function LanguagePage() {
           items={timezones}
           onSelect={item => handleSelectTimezone(item)}
           disabled={editing}
+          notClearable={true}
         />
       </div>
     </>