fix(docs): fix highlight error without bash language

Author: nzbin

projects/docs/src/app/app.config.ts

@@ -24,6 +24,7 @@ export const appConfig: ApplicationConfig = {
         xml: () => import('highlight.js/lib/languages/xml'),
         json: () => import('highlight.js/lib/languages/json'),
         diff: () => import('highlight.js/lib/languages/diff'),
+        bash: () => import('highlight.js/lib/languages/bash'),
       },
     }),
   ],