- Implement markdown parsing cache in Chat.svelte to reduce redundant processing
- Add virtual scrolling and asynchronous loading in DefaultChatScreen.svelte
- Create message form cache mechanism in util.ts to improve rendering efficiency
- Introduce loading state and performance optimizations for large chat histories
# PR Checklist
- [ ] Have you checked if it works normally in all models? *Ignore this
if it doesn't use models.*
- [ ] Have you checked if it works normally in all web, local, and node
hosted versions? If it doesn't, have you blocked it in those versions?
- [ ] Have you added type definitions?
# Description
This PR addresses the issue where asset names were only recognized when
entered in lowercase, even if they were originally uppercase. It ensures
that asset names are now case-insensitive, aligning with the intended
behavior.
# PR Checklist
- [x] Have you checked if it works normally in all models? *Ignore this
if it doesn't use models.*
- [x] Have you checked if it works normally in all web, local, and node
hosted versions? If it doesn't, have you blocked it in those versions?
- [ ] Have you added type definitions?
# Description

The error messages were not properly displayed, showing [object Object]
instead of the actual content.
<br>

This PR improves error handling to display actual error content.