add right sidebar collapse + back to top option (#40)

* mvp

* add back to top

Author: HarshCasper

astro.config.mjs

@@ -4,6 +4,8 @@ import starlight from '@astrojs/starlight';
 import starlightUtils from '@lorenzo_lewis/starlight-utils';
 import starlightDocSearch from '@astrojs/starlight-docsearch';
 import starlightLinksValidator from 'starlight-links-validator'
+import starlightFullViewMode from 'starlight-fullview-mode'
+import starlightTocOverviewCustomizer from 'starlight-toc-overview-customizer'
 
 import markdoc from '@astrojs/markdoc';
 
@@ -94,6 +96,12 @@ export default defineConfig({
         alt: 'LocalStack',
       },
       plugins: [
+        starlightTocOverviewCustomizer({
+          overviewTitle: "Back to top",
+        }),
+        starlightFullViewMode({
+          leftSidebarEnabled: false,
+        }),
         starlightLinksValidator({
           errorOnRelativeLinks: false,
           errorOnLocalLinks: false,

package-lock.json

@@ -29,7 +29,9 @@
     "react": "^19.1.0",
     "react-dom": "^19.1.0",
     "sharp": "^0.32.5",
+    "starlight-fullview-mode": "^0.2.3",
     "starlight-links-validator": "^0.17.0",
+    "starlight-toc-overview-customizer": "^0.1.0",
     "tailwind-merge": "^3.2.0",
     "tailwindcss": "^4.1.6"
   },