feat(doc): new homepage design and font (#13084)

docs/docusaurus.config.js

@@ -72,14 +72,9 @@ const config = {
   themeConfig:
     /** @type {import('@docusaurus/preset-classic').ThemeConfig} */
     ({
-      colorMode: {
-        defaultMode: 'dark',
-      },
       announcementBar: {
         id: 'site_announcement_immich',
         content: `⚠️ The project is under <strong>very active</strong> development. Expect bugs and changes. Do not use it as <strong>the only way</strong> to store your photos and videos!`,
-        backgroundColor: '#593f00',
-        textColor: '#ffefc9',
         isCloseable: false,
       },
       docs: {