[Chore/Refactor] Add missing 'type' attribute on 'button' components (#26249)

Co-authored-by: copilot-swe-agent[bot] <198982749+Copilot@users.noreply.github.com>
Co-authored-by: asukaminato0721 <30024051+asukaminato0721@users.noreply.github.com>

web/app/components/datasets/documents/detail/index.tsx

@@ -200,7 +200,7 @@ const DocumentDetail: FC<DocumentDetailProps> = ({ datasetId, documentId }) => {
               onUpdate={handleOperate}
               className='!w-[200px]'
             />
-            <button
+            <button type="button"
               className={style.layoutRightIcon}
               onClick={() => setShowMetadata(!showMetadata)}
             >

web/app/components/datasets/documents/detail/metadata/index.tsx

@@ -107,7 +107,7 @@ const IconButton: FC<{
     <Tooltip
       popupContent={metadataMap[type].text}
     >
-      <button className={cn(s.iconWrapper, 'group', isChecked ? s.iconCheck : '')}>
+      <button type="button" className={cn(s.iconWrapper, 'group', isChecked ? s.iconCheck : '')}>
         <TypeIcon
           iconName={metadataMap[type].iconName || ''}
           className={`group-hover:bg-primary-600 ${isChecked ? '!bg-primary-600' : ''}`}