set theme text color for no matching items in auto complete

packages/opencode/src/cli/cmd/tui/component/prompt/autocomplete.tsx

@@ -497,7 +497,7 @@ export function Autocomplete(props: {
           each={options()}
           fallback={
             <box paddingLeft={1} paddingRight={1}>
-              <text>No matching items</text>
+              <text fg={theme.textMuted}>No matching items</text>
             </box>
           }
         >