Feat: Replace the link of the old version of the agent module #3221 (#9130)

### What problem does this PR solve?
Feat: Automatically save agent canvas content
Feat: Replace the link of the old version of the agent module #3221
### Type of change


- [x] New Feature (non-breaking change which adds functionality)

web/src/constants/common.ts

@@ -150,3 +150,9 @@ export enum Platform {
   FastGPT = 'FastGPT',
   Coze = 'Coze',
 }
+
+export enum ThemeEnum {
+  Dark = 'dark',
+  Light = 'light',
+  System = 'system',
+}