feat(settings): add searchable navigation

apps/client/src/features/app-settings/panel-list/SettingsSearch.tsx

@@ -0,0 +1,60 @@
+import { KeyboardEvent, useRef } from 'react';
+import { IoClose, IoSearch } from 'react-icons/io5';
+
+import IconButton from '../../../common/components/buttons/IconButton';
+import Input from '../../../common/components/input/input/Input';
+
+import style from './SettingsSearch.module.scss';
+
+interface SettingsSearchProps {
+  query: string;
+  onQueryChange: (query: string) => void;
+  onSubmit: () => void;
+}
+
+export default function SettingsSearch({ query, onQueryChange, onSubmit }: SettingsSearchProps) {
+  const searchRef = useRef<HTMLInputElement>(null);
+  const isSearching = query.trim().length > 0;
+
+  const handleKeyDown = (event: KeyboardEvent<HTMLInputElement>) => {
+    if (event.key === 'Escape' && isSearching) {
+      // Do not let the settings panel close while the user is clearing a search.
+      event.stopPropagation();
+      onQueryChange('');
+      return;
+    }
+
+    if (event.key === 'Enter') {
+      onSubmit();
+    }
+  };
+
+  return (
+    <div className={style.search}>
+      <IoSearch className={style.icon} />
+      <Input
+        ref={searchRef}
+        value={query}
+        onChange={(event) => onQueryChange(event.target.value)}
+        onKeyDown={handleKeyDown}
+        placeholder='Search settings'
+        className={style.input}
+        fluid
+      />
+      {isSearching && (
+        <IconButton
+          variant='ghosted-white'
+          size='small'
+          aria-label='Clear search'
+          className={style.clear}
+          onClick={() => {
+            onQueryChange('');
+            searchRef.current?.focus();
+          }}
+        >
+          <IoClose />
+        </IconButton>
+      )}
+    </div>
+  );
+}