Refactor API endpoints to use '/api/lm/' prefix

- Updated all relevant routes in `stats_routes.py` and `update_routes.py` to include the new '/api/lm/' prefix for consistency.
- Modified API endpoint configurations in `apiConfig.js` to reflect the new structure, ensuring all CRUD and bulk operations are correctly routed.
- Adjusted fetch calls in various components and managers to utilize the updated API paths, including recipe, model, and example image operations.
- Ensured all instances of the old API paths were replaced with the new '/api/lm/' prefix across the codebase for uniformity and to prevent broken links.

static/js/managers/import/DownloadManager.js

@@ -68,7 +68,7 @@ export class DownloadManager {
                 formData.append('metadata', JSON.stringify(completeMetadata));
             
                 // Send save request
-                const response = await fetch('/api/recipes/save', {
+                const response = await fetch('/api/lm/recipes/save', {
                     method: 'POST',
                     body: formData
                 });