feat: migrate docs from Nextra to Fumadocs (#606)

* feat: checkpoint

* feat: Migrate docs to Fumadocs

* chore: docs layout

* chore:
- remove home route
- make docs home route
- remove docs prefix

* chore: docs layout

* chore:
- reorder sidebar
- fix home page redirect

* chore: rename package to avoid error during pnpm clean

* chore: remove private and sideEffects properties from package.json

* chore: requested fixes

* feat: update fumadocs layout

* feat: hide theme switch on sidebar

* add /docs

* feat: enhance documentation and layout with new guides and updates

- Added multiple how-to guides for creating courses, exercises, and managing organization settings.
- Updated existing documentation for clarity and consistency, including renaming sections for better navigation.
- Introduced new assets such as logos and favicon for improved branding.
- Modified layout components to enhance user experience and visual appeal.
- Updated package dependencies to include lucide-react for icon usage.

* chore: update pnpm-lock.yaml with dependency version changes

* add favicon

* fix: update links in documentation for consistency

- Corrected the links in the create-exercise and signup guides to ensure they point to the correct paths, enhancing clarity and navigation for users.

* delete docs

---------

Co-authored-by: Rotimi Best <best@classroomio.com>

apps/docs/tsconfig.json

@@ -1,20 +0,0 @@
-{
-  "compilerOptions": {
-    "target": "es5",
-    "lib": ["dom", "dom.iterable", "esnext"],
-    "allowJs": true,
-    "skipLibCheck": true,
-    "strict": false,
-    "forceConsistentCasingInFileNames": true,
-    "noEmit": true,
-    "incremental": true,
-    "esModuleInterop": true,
-    "module": "esnext",
-    "moduleResolution": "node",
-    "resolveJsonModule": true,
-    "isolatedModules": true,
-    "jsx": "preserve"
-  },
-  "include": ["next-env.d.ts", "**/*.ts", "**/*.tsx", "pages/_app.js"],
-  "exclude": ["node_modules"]
-}