chore: move backend to hono + typescript (#558)

* feat: setup secure presigned uploads and downloads

* clean up

* update lock

* Get presigned url finally working

* 557: Migrate backend to hono + ts

* chore: update Dockerfile and package.json for backend configuration

* add dev command

* remove unused packages

* Enhance backend API and frontend components for course management

- Updated CORS configuration in the backend to allow specific methods and headers.
- Refactored lesson download endpoint to use a new route for PDF downloads.
- Removed unused certificate download functionality from the lesson router.
- Updated frontend components to reflect changes in API endpoints and improve video upload functionality.
- Introduced new video upload component and adjusted video handling in lesson materials.
- Cleaned up unnecessary imports and optimized component structure for better performance.

* PR cleanups

* Enhance email configuration by adding SMTP_SENDER environment variable

- Updated docker-compose.yaml to include SMTP_SENDER.
- Modified Dockerfile to accept SMTP_SENDER as an argument.
- Updated environment schema in env.ts to define SMTP_SENDER as optional.
- Adjusted mail service to use SMTP_SENDER for the email 'from' field.
- Updated documentation to reflect the new SMTP_SENDER variable.

* Remove debug log statement from sendEmail function

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Co-authored-by: Iniubong Obonguko <iniubongobonguko2018@gmail.com>

apps/dashboard/src/lib/utils/functions/tinymce/plugins.ts

@@ -89,7 +89,7 @@ export const addMathPlugin = (tinymce: any) => {
 
           if (srcMatch) {
             // 2. Point the formula to our server
-            const customAPI = env.PUBLIC_SERVER_URL + '/katex';
+            const customAPI = env.PUBLIC_SERVER_URL + '/course/katex';
             const url = srcMatch[1]?.replaceAll('https://latex.codecogs.com/svg.image', customAPI);
 
             // 3. Fetch the HTML from the server