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/Common/ProviderIcon.tsx

@@ -6,6 +6,7 @@ import { LMStudioIcon } from "../Icons/LMStudio"
 import { OpenAiIcon } from "../Icons/OpenAI"
 import { TogtherMonoIcon } from "../Icons/Togther"
 import { OpenRouterIcon } from "../Icons/OpenRouter"
+import { LLamaFile } from "../Icons/Llamafile"
 
 export const ProviderIcons = ({
   provider,
@@ -31,6 +32,8 @@ export const ProviderIcons = ({
       return <TogtherMonoIcon className={className} />
     case "openrouter":
       return <OpenRouterIcon className={className} />
+    case "llamafile":
+      return <LLamaFile className={className} />
     default:
       return <OllamaIcon className={className} />
   }