chore(website): add java to prism supported languages to enable scala syntax highlighting

Author: kelvin-olaiya

docs/docusaurus.config.js

@@ -120,7 +120,7 @@ const config = {
       prism: {
         theme: lightCodeTheme,
         darkTheme: darkCodeTheme,
-        additionalLanguages: ['scala'],
+        additionalLanguages: ['java', 'scala'],
       },
     }),
 };