Add TypeScript type definitions for React and React DOM; update Hero235 component with new background styles; modify homepage title and include About19 component.

src/pages/index.astro

@@ -1,4 +1,5 @@
 ---
+import { About19 } from "@/components/about19";
 import { Contact21 } from "@/components/contact21";
 import { Faq7 } from "@/components/faq7";
 import { Feature284 } from "@/components/feature284";
@@ -16,7 +17,7 @@ import "@/styles/global.css";
     <link rel="icon" href="/favicon.ico" />
     <meta name="viewport" content="width=device-width" />
     <meta name="generator" content={Astro.generator} />
-    <title>Website</title>
+    <title>Matthias Meister Webdesign</title>
     <script
     src="https://rybbit.matthias.lol/api/script.js"
     data-site-id="60abc81e438a"
@@ -30,6 +31,7 @@ import "@/styles/global.css";
       <Stats11 client:load />
       <Pricing4 client:load />
       <Faq7 client:load />
+      <About19 client:load />
       <Contact21 client:load />
       <Footer27 client:load />
     </div>