docs: add Claude as a supported conversation import option (#536)

Closes #523

- Add Claude to the list of supported import sources in description and body
- Add 'How to import conversations from Claude' section with step-by-step instructions
- Update wording from 'GPT chat applications' to 'AI chat applications'
- Reference Claude conversation export with thinking block support (LibreChat#11124)

content/docs/features/import_convos.mdx

@@ -1,31 +1,30 @@
 ---
 title: Import Conversations
 icon: Import
-description: Conversations Import allows user to import conversations exported from other GPT chat applications. Currently, we support importing conversations from ChatGPT, ChatbotUI v1, and LibreChat itself.  
+description: Conversations Import allows user to import conversations exported from other AI chat applications. Currently, we support importing conversations from ChatGPT, Claude, ChatbotUI v1, and LibreChat itself.  
 ---
 
-Conversations Import allows user to import conversations exported from other GPT chat applications. Currently, we support importing conversations from [ChatGPT](https://chatgpt.com/), [ChatbotUI v1](https://github.com/mckaywrigley/chatbot-ui/tree/b865b0555f53957e96727bc0bbb369c9eaecd83b?tab=readme-ov-file#legacy-code), and LibreChat itself.
+Conversations Import allows user to import conversations exported from other AI chat applications. Currently, we support importing conversations from [ChatGPT](https://chatgpt.com/), [Claude](https://claude.ai/), [ChatbotUI v1](https://github.com/mckaywrigley/chatbot-ui/tree/b865b0555f53957e96727bc0bbb369c9eaecd83b?tab=readme-ov-file#legacy-code), and LibreChat itself.
 
 The Import functionality is available in the "Settings" -> "Data Controls" section.
 
-## How to import conversations from Chat GPT
+## Export your conversations
+
+### ChatGPT
 
 1. Follow the [ChatGPT export instructions](https://help.openai.com/en/articles/7260999-how-do-i-export-my-chatgpt-history-and-data) to export your conversations.
-2. You should get a link to download archive in you email.
-3. Download the archive. It should be a zip file with random name like: _d119d98bb3711aff7a2c73bcc7ea53d96c984650d8f7e033faef78386a9907-2024-01-01-10-30-00.zip_
+2. You should get a link to download the archive in your email.
+3. Download the archive. It should be a zip file with a random name like: _d119d98bb3711aff7a2c73bcc7ea53d96c984650d8f7e033faef78386a9907-2024-01-01-10-30-00.zip_
 4. Extract the content of the zip file.
-5. Navigate to LibreChat Settings -> Data Controls
-<div style={{padding: "20px", display: "flex", justifyContent: "center", alignItems: "center", flexDirection: "column"}}>
-  <div className="image-light-theme">
-    ![Image for Light Theme](https://github.com/danny-avila/LibreChat/assets/32828263/3c71b4f8-3d67-4293-ae89-fea4c59312d8)
-  </div>
 
-  <div className="image-dark-theme">
-    ![Image for Dark Theme](https://github.com/danny-avila/LibreChat/assets/32828263/14151a19-94ca-45b3-a79e-134d961e474c)
-  </div>
-</div>
-6. Click on the "Import" button and select `conversations.json` file from the extracted archive. It will start importing the conversations.
-7. Shortly you will get a notification that the import is complete.
-<div style={{padding: "20px", display: "flex", justifyContent: "center", alignItems: "center", flexDirection: "column"}}>
-    ![import-success](https://github.com/danny-avila/LibreChat/assets/32828263/597eefec-0b8e-4fbf-ac27-2405472c195f)
-</div>
+### Claude
+
+1. Follow the [Claude export instructions](https://support.claude.com/en/articles/9450526-how-can-i-export-my-claude-data) to export your conversations.
+2. You will receive an email with a download link for your export archive.
+3. Download and extract the archive.
+
+## Import into LibreChat
+
+1. Navigate to LibreChat **Settings** → **Data Controls**.
+2. Click on the **Import** button and select the `conversations.json` file from the extracted archive.
+3. Shortly you will get a notification that the import is complete.