Added SEO to website pages (#5106)

Added SEO to Contributors, Contributor, User Guide (+ each of it's
pages), Changelog, OSS friends: titles, descriptions

Co-authored-by: Ady Beraud <a.beraud96@gmail.com>

packages/twenty-website/src/app/oss-friends/page.tsx

@@ -4,6 +4,13 @@ import { CardContainer } from '@/app/_components/oss-friends/CardContainer';
 import { ContentContainer } from '@/app/_components/oss-friends/ContentContainer';
 import { Header } from '@/app/_components/oss-friends/Header';
 
+export const metadata = {
+  title: 'Twenty - OSS friends',
+  description:
+    'At Twenty, we are proud to be part of a global open-source movement. Here are some of our fellow open source friends.',
+  icons: '/images/core/logo.svg',
+};
+
 export default async function OssFriends() {
   const ossList = await fetch('https://formbricks.com/api/oss-friends');