chore: added frontmatter plus some changes

apps/documentation/theme.config.tsx

@@ -0,0 +1,49 @@
+import { useConfig } from 'nextra-theme-docs';
+import type { DocsThemeConfig } from 'nextra-theme-docs';
+
+const themeConfig: DocsThemeConfig = {
+  logo: <span>Documenso</span>,
+  head: function useHead() {
+    const config = useConfig<{ title?: string; description?: string }>();
+
+    const title = `${config.frontMatter.title} | Documenso Docs` || 'Documenso Docs';
+    const description = config.frontMatter.description || 'The official Documenso documentation';
+
+    return (
+      <>
+        <meta httpEquiv="Content-Language" content="en" />
+        <meta name="title" content={title} />
+        <meta name="og:title" content={title} />
+        <meta name="description" content={description} />
+        <meta name="og:description" content={description} />
+      </>
+    );
+  },
+  project: {
+    link: 'https://documen.so/github',
+  },
+  chat: {
+    link: 'https://documen.so/discord',
+  },
+  docsRepositoryBase: 'https://github.com/documenso/documenso/tree/main/apps/documentation',
+  footer: {
+    text: (
+      <span>
+        {new Date().getFullYear()} ©{' '}
+        <a href="https://documen.so" target="_blank">
+          Documenso
+        </a>
+        .
+      </span>
+    ),
+  },
+  primaryHue: 100,
+  primarySaturation: 48.47,
+  useNextSeoProps() {
+    return {
+      titleTemplate: '%s | Documenso Docs',
+    };
+  },
+};
+
+export default themeConfig;