feat: dm-plain-anchor -> getPrefixCls('plain-anchor')

Author: 刘欢

src/components/center-popup/center-popup.tsx

@@ -128,7 +128,10 @@ export const CenterPopup: FC<CenterPopupProps> = props => {
           >
             {mergedProps.showCloseButton && (
               <a
-                className={classNames(`${prefixCls}-close`, 'adm-plain-anchor')}
+                className={classNames(
+                  `${prefixCls}-close`,
+                  getPrefixCls('plain-anchor')
+                )}
                 onClick={() => {
                   mergedProps.onClose?.()
                 }}

src/components/popup/popup.tsx

@@ -145,7 +145,7 @@ export const Popup: FC<PopupProps> = p => {
             <a
               className={classNames(
                 `${prefixCls}-close-icon`,
-                'adm-plain-anchor'
+                getPrefixCls('plain-anchor')
               )}
               onClick={() => {
                 props.onClose?.()