fix(models): correct sonar-deep-research model name in Perplexity config

The sonar-deep-research entry under chatPerplexity had its name field incorrectly set to 'sonar' instead of 'sonar-deep-research'. This caused two issues:

1. Users selecting sonar-deep-research in the UI would hit the regular sonar API endpoint instead of the deep research endpoint

2. A duplicate name collision with the existing sonar entry, causing incorrect cost lookups

Author: AbdulSamad94

packages/components/models.json

@@ -1629,7 +1629,7 @@
                 },
                 {
                     "label": "sonar-deep-research",
-                    "name": "sonar",
+                    "name": "sonar-deep-research",
                     "input_cost": 2e-6,
                     "output_cost": 8e-6
                 },