feat: Add LlamaFile support

Add support for LlamaFile, a new model provider that allows users to interact with models stored in LlamaFile format. This includes:

- Adding an icon for LlamaFile in the provider selection menu.
- Updating the model provider selection to include LlamaFile.
- Updating the model handling logic to properly identify and process LlamaFile models.
- Updating the API providers list to include LlamaFile.

This enables users to leverage the capabilities of LlamaFile models within the application.

src/components/Icons/Llamafile.tsx

@@ -0,0 +1,24 @@
+// copied logo from Hugging Face webiste 
+import React from "react"
+
+export const LLamaFile = React.forwardRef<
+  SVGSVGElement,
+  React.SVGProps<SVGSVGElement>
+>((props, ref) => {
+  return (
+    <svg
+      xmlns="http://www.w3.org/2000/svg"
+      width="1em"
+      height="1em"
+      className="text-black inline-block text-sm"
+      viewBox="0 0 16 16"
+      ref={ref}
+      {...props}>
+      <path
+        fill="currentColor"
+        fillRule="evenodd"
+        d="M7.66 5.82H4.72a.31.31 0 0 1-.32-.32c0-.64-.52-1.16-1.16-1.16H1.6a.7.7 0 0 0-.7.7v8.3c0 .52.43.95.96.95h9.4c.4 0 .75-.3.82-.7l.65-3.84.74-.07a2.08 2.08 0 0 0 .28-4.1l-.94-.22-.11-.2a2.3 2.3 0 0 0-.54-.64v-.05a5.6 5.6 0 0 1 .1-1.02l.07-.45c.01-.1.02-.21.01-.32a.6.6 0 0 0-.1-.27.5.5 0 0 0-.54-.21c-.12.03-.2.1-.24.14a1 1 0 0 0-.12.13A4.8 4.8 0 0 0 10.76 4h-.33l.05-.49.04-.28.06-.53c.01-.1.02-.26 0-.42a1 1 0 0 0-.15-.43.87.87 0 0 0-.93-.35.96.96 0 0 0-.4.22c-.08.06-.14.13-.18.19a5.5 5.5 0 0 0-.55 1.25c-.15.52-.28 1.2-.24 1.85-.2.24-.36.51-.47.8Zm.66.8c.06-.52.3-.98.67-1.3l.02-.01c-.15-.72.05-1.65.28-2.28.15-.41.31-.7.41-.72.05-.01.06.07.06.22l-.07.56v.06a11 11 0 0 0-.1 1.28c.01.21.05.39.14.49a2 2 0 0 1 .57-.08h.42c.52 0 1 .28 1.25.73l.2.36c.06.1.16.18.28.21l1.11.26a1.24 1.24 0 0 1-.17 2.45l-1.38.12-.76 4.48h-4.2L8.33 6.6Z"
+        clipRule="evenodd"></path>
+    </svg>
+  )
+})