Fix: Optimize dataset page layout and internationalization and default values for multi selection #3221 (#9695)

### What problem does this PR solve?

Fix: Optimize dataset page layout and internationalization and Fix
setting default values for multi selection drop-down boxes #3221

-Adjust the style and layout of each component on the dataset page
-Add and update multilingual translation content

### Type of change

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

web/src/pages/dataset/sidebar/index.tsx

@@ -67,10 +67,14 @@ export function SideBar({ refreshCount }: PropType) {
             {data.name}
           </h3>
           <div className="flex justify-between">
-            <span>{data.doc_num} files</span>
+            <span>
+              {data.doc_num} {t('knowledgeDetails.files')}
+            </span>
             <span>{formatBytes(data.size)}</span>
           </div>
-          <div>Created {formatPureDate(data.create_time)}</div>
+          <div>
+            {t('knowledgeDetails.created')} {formatPureDate(data.create_time)}
+          </div>
         </div>
       </div>