fix: address issues in model pull and chat API

- Refactored model pull logic to improve error handling and user feedback.
- Enhanced chat API to ensure better performance and reliability during message fetching.
- Updated UI components for a more intuitive user experience when interacting with models and messages.

data/models/granite3.2.json

@@ -0,0 +1,26 @@
+{
+  "model": "granite3.2",
+  "url": "https://ollama.com/library/granite3.2",
+  "description": "Granite-3.2 is a family of long-context AI models from IBM Granite fine-tuned for thinking capabilities.",
+  "variantsCount": 3,
+  "variants": [
+    {
+      "name": "granite3.2:latest",
+      "size": "4.9GB",
+      "context": "128K",
+      "inputType": "Text"
+    },
+    {
+      "name": "granite3.2:2b",
+      "size": "1.5GB",
+      "context": "128K",
+      "inputType": "Text"
+    },
+    {
+      "name": "granite3.2:8b",
+      "size": "4.9GB",
+      "context": "128K",
+      "inputType": "Text"
+    }
+  ]
+}