Set max width for UploaderReadOnly component to match container width.

Node18 (#563)

* Fix regenerated message index update in `onRegenerate` function.

* Update Node.js version to 18.x in GitHub workflows

Regenerate (#561)

* Fix regenerate logic and UI button placement in chat components.

* Refactor `onRegenerate` function to handle regeneration logic more explicitly.

* Fix chat regeneration logic and add delete functionality

- Prevent creating empty user messages in `chat_main_handler.go`.
- Add logging for regenerating answers without new questions.
- Update `content.ts` to ensure proper deletion handling.
- Enhance `Conversation.vue` to handle regeneration correctly and delete chat messages.
- Add `deleteChat` function in `useChat.ts` for chat deletion.

Add logging for OpenAI request and fix locale/logic issues (#560)

Refactor error handling and message rendering in chat components (#558)

* Refactor error handling and message rendering in chat components

* Remove unused `useMessage` import from axios utility.

Fix chat session endpoint and order by latest message time (#557)

* Fix chat session endpoint and order by latest message time

* Update chat session query to use LEFT JOIN and order by latest message time and session ID.

Move `NModal` component outside of header for better structure. (#550)

* Move `NModal` component outside of header for better structure.

* Adjust margin-right for search button in snapshot view.

Adjust bottom margin of image wrapper from 8 to 10 for better spacing. (

#547)

Update default MaxToken from 512 to 4096 for modern model support.

Add isValid getter to auth store and use it for permission checks (#528)

* Remove commented-out code and unnecessary comments in chat store module.

* Sort chat sessions by ID in descending order and sync sessions in chat store.

* Make `addChatSession` method asynchronous and await its calls in chat store and sider component.

* Add `isValid` getter to auth store and use it for permission checks in admin, bot, chat, and snapshot views.

* Refactor snapshot view: remove unused imports, simplify variable names, and improve error handling.

* Add API token fetching function in `web/src/api/token.ts`

* Refactor bot view to use `fetchAPIToken` and improve variable naming.