🫧 refactor: Clear Drafts and Surface Error on Expired SSE Stream (#12309)

* refactor: error handling in useResumableSSE for 404 responses

- Added logic to clear drafts from localStorage when a 404 error occurs.
- Integrated errorHandler to notify users of the error condition.
- Introduced comprehensive tests to validate the new behavior, ensuring drafts are cleared and error handling is triggered correctly.C

* feat: add STREAM_EXPIRED error handling and message localization

- Introduced handling for STREAM_EXPIRED errors in useResumableSSE, updating errorHandler to provide relevant feedback.
- Added a new error message for STREAM_EXPIRED in translation files for user notifications.
- Updated tests to ensure proper error handling and message verification for STREAM_EXPIRED scenarios.

* refactor: replace clearDraft with clearAllDrafts utility

- Removed the clearDraft function from useResumableSSE and useSSE hooks, replacing it with the new clearAllDrafts utility for better draft management.
- Updated localStorage interactions to ensure both text and file drafts are cleared consistently for a conversation.
- Enhanced code readability and maintainability by centralizing draft clearing logic.

client/src/components/Messages/Content/Error.tsx

@@ -75,6 +75,7 @@ const errorMessages = {
     return info;
   },
   [ErrorTypes.GOOGLE_TOOL_CONFLICT]: 'com_error_google_tool_conflict',
+  [ErrorTypes.STREAM_EXPIRED]: 'com_error_stream_expired',
   [ViolationTypes.BAN]:
     'Your account has been temporarily banned due to violations of our service.',
   [ViolationTypes.ILLEGAL_MODEL_REQUEST]: (json: TGenericError, localize: LocalizeFunction) => {