feat: Add react package (#4)

* chore: Organise

* feat: Add `react` package

* refactor: Remove unneeded char

packages/js/src/to-svg.js

@@ -0,0 +1,30 @@
+import icons from './icons';
+
+/**
+ * Create an SVG string.
+ * @deprecated
+ * @param {string} name
+ * @param {Object} attrs
+ * @returns {string}
+ */
+function toSvg(name, attrs = {}) {
+  console.warn(
+    'feather.toSvg() is deprecated. Please use feather.icons[name].toSvg() instead.',
+  );
+
+  if (!name) {
+    throw new Error('The required `key` (icon name) parameter is missing.');
+  }
+
+  if (!icons[name]) {
+    throw new Error(
+      `No icon matching '${
+        name
+      }'. See the complete list of icons at https://feathericons.com`,
+    );
+  }
+
+  return icons[name].toSvg(attrs);
+}
+
+export default toSvg;