feat(components): add TextInput

src/components/TextInput/TextInput.Skeleton.svelte

@@ -0,0 +1,17 @@
+<script>
+  let className = undefined;
+  export { className as class };
+  export let hideLabel = false;
+  export let props = {};
+
+  import { cx } from '../../lib';
+
+  const _class = cx('--form-item', className);
+</script>
+
+<div {...props} class={_class}>
+  {#if !hideLabel}
+    <span class={cx('--label', '--skeleton')} />
+  {/if}
+  <div class={cx('--skeleton', '--text-area')} />
+</div>