Add .har file support for Copilot

Update provider in Vision documentation
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docs/async_client.md

@@ -154,13 +154,14 @@ import asyncio
 from g4f.client import AsyncClient
 
 async def main():
-    client = AsyncClient()
-    
+    client = AsyncClient(
+        provider=g4f.Provider.CopilotAccount
+    )
+
     image = requests.get("https://raw.githubusercontent.com/xtekky/gpt4free/refs/heads/main/docs/cat.jpeg", stream=True).raw
-    
+
     response = await client.chat.completions.create(
         model=g4f.models.default,
-        provider=g4f.Provider.Bing,
         messages=[
             {
                 "role": "user",
@@ -169,7 +170,7 @@ async def main():
         ],
         image=image
     )
-    
+
     print(response.choices[0].message.content)
 
 asyncio.run(main())

docs/client.md

@@ -265,7 +265,9 @@ from g4f.client import Client
 image = requests.get("https://raw.githubusercontent.com/xtekky/gpt4free/refs/heads/main/docs/cat.jpeg", stream=True).raw
 # Or: image = open("docs/cat.jpeg", "rb")
 
-client = Client()
+client = Client(
+    provider=CopilotAccount
+)
 
 response = client.chat.completions.create(
     model=g4f.models.default,
@@ -275,7 +277,6 @@ response = client.chat.completions.create(
             "content": "What are on this image?"
         }
     ],
-    provider=g4f.Provider.Bing,
     image=image
     # Add any other necessary parameters
 )