docs(mobile-client): add overview and status pages to sidebar

- Add 'Overview' link to the beginning of the 'Features' section
- Add 'Status Pages' link to the end of the 'Features' section

Author: fulleni

astro.config.mjs

@@ -157,13 +157,15 @@ export default defineConfig({
 							label: 'Features',
 							collapsed: true,
 							items: [
+								{ label: 'Overview', link: '/mobile-client/features/' },
 								{ label: 'Account', link: '/mobile-client/features/account' },
 								{ label: 'Authentication', link: '/mobile-client/features/authentication' },
 								{ label: 'Entity Details', link: '/mobile-client/features/entity-details' },
 								{ label: 'Headline Details', link: '/mobile-client/features/headline-details' },
 								{ label: 'Headlines Feed', link: '/mobile-client/features/headlines-feed' },
 								{ label: 'Search', link: '/mobile-client/features/search' },
 								{ label: 'Settings', link: '/mobile-client/features/settings' },
+								{ label: 'Status Pages', link: '/mobile-client/features/status-pages' },
 							],
 						},
 						{ label: 'Deployment', link: '/mobile-client/deployment' },