feat: add textarea pattern

Author: thedaviddias

content/en/patterns/forms/date-input.mdx

@@ -1,5 +1,6 @@
 ---
-description: "Enter dates in a structured format"
+summary: "Enter dates in a structured text format"
+description: "Implement user-friendly date input fields with proper validation and formatting. Learn best practices for collecting dates in forms, including accessibility, localization, and browser compatibility considerations."
 icon: Calendar
 ---
 

content/en/patterns/forms/textarea.mdx

@@ -0,0 +1,15 @@
+---
+summary: "Multi-line text input for longer content"
+description: "Learn how to implement accessible textarea components for collecting long-form content, comments, and detailed responses. Discover best practices for multi-line text input with proper validation and user experience."
+icon: TextSelect
+---
+
+import { Callout } from "nextra/components";
+
+# Textarea
+
+<Callout type="warning">
+  This page is empty for now. Please help us by
+  [contributing](https://github.com/thedaviddias/ux-patterns-for-developers/blob/main/.github/CONTRIBUTING.md)
+  to add content.
+</Callout>