search-field demo: clear button text follows the locale

The demo hardcoded the visible Clear button label inline:

    <SearchField.ClearTrigger>Clear</SearchField.ClearTrigger>

So the toolbar's locale toggle (ES/EN) only swapped the aria-label
via the morfo's translationRef, not the visible text. With locale=ES
the panel showed a Spanish UI everywhere except the literal "Clear".

Replace with `uix.langs.ts('#?components.search-field.clear|Clear')`
so the visible button picks up the active catalog entry. Catalog
strings shortened to just `Borrar` / `Clear` (one-word action label
that fits the inline-button affordance — the previous "Borrar
búsqueda" was too long for the visible chrome and wrapped in two
lines). The full phrase still reads naturally for aria-label.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

src/uix/langs/components/search-field.ts

@@ -13,7 +13,7 @@ export const searchFieldLangs = {
 		en: "Search"
 	},
 	clear: {
-		es: "Borrar búsqueda",
-		en: "Clear search"
+		es: 'Borrar',
+		en: 'Clear'
 	}
 } satisfies LangNode;

web/routes/uix/components/search-field/+page.svelte

@@ -145,7 +145,9 @@
 					onClear={() => (lastSubmit = 'cleared')}
 				>
 					<SearchField.Input />
-					<SearchField.ClearTrigger>Clear</SearchField.ClearTrigger>
+					<SearchField.ClearTrigger>
+						{uix.langs.ts('#?components.search-field.clear|Clear')}
+					</SearchField.ClearTrigger>
 				</SearchField>
 			</div>
 		</div>