fix: Optimize internationalization configuration #3221 (#9924)

### What problem does this PR solve?

fix: Optimize internationalization configuration

- Update multi-language options, adding general translations for
functions like Select All and Clear
- Add internationalization support for modules like Chat, Search, and
Datasets

### Type of change

- [x] Bug Fix (non-breaking change which fixes an issue)

web/src/components/delimiter-form-field.tsx

@@ -52,6 +52,7 @@ export function DelimiterFormField() {
           <FormItem className=" items-center space-y-0 ">
             <div className="flex items-center gap-1">
               <FormLabel
+                required
                 tooltip={t('knowledgeDetails.delimiterTip')}
                 className="text-sm text-muted-foreground whitespace-break-spaces w-1/4"
               >