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/components/shared/ModelModal.js

@@ -460,7 +460,7 @@ async function saveNotes(filePath) {
  */
 async function openFileLocation(filePath) {
     try {
-        const resp = await fetch('/api/open-file-location', {
+        const resp = await fetch('/api/lm/open-file-location', {
             method: 'POST',
             headers: { 'Content-Type': 'application/json' },
             body: JSON.stringify({ 'file_path': filePath })