feat: upgrade knowledge metadata (#16063)

Support filter knowledge by metadata.

Co-authored-by: Joel <iamjoel007@gmail.com>
Co-authored-by: NFish <douxc512@gmail.com>

web/app/components/datasets/metadata/add-metadata-button.tsx

@@ -0,0 +1,31 @@
+'use client'
+import type { FC } from 'react'
+import React from 'react'
+import Button from '../../base/button'
+import { RiAddLine } from '@remixicon/react'
+import cn from '@/utils/classnames'
+import { useTranslation } from 'react-i18next'
+
+type Props = {
+  className?: string
+  onClick?: () => void
+}
+
+const AddedMetadataButton: FC<Props> = ({
+  className,
+  onClick,
+}) => {
+  const { t } = useTranslation()
+  return (
+    <Button
+      className={cn('w-full flex items-center', className)}
+      size='small'
+      variant='tertiary'
+      onClick={onClick}
+    >
+      <RiAddLine className='mr-1 size-3.5' />
+      <div>{t('dataset.metadata.addMetadata')}</div>
+    </Button>
+  )
+}
+export default React.memo(AddedMetadataButton)