feat(getPageContentText): replace custom text extraction with notion-utils

The getTextContent function was removed and replaced with an import from
notion-utils, simplifying the text extraction logic for Notion page
content. This change removes the custom recursive implementation and
uses the standardized utility function instead.

lib/notion/getPageContentText.js

@@ -1,4 +1,4 @@
-import { checkStrIsUuid, isIterable } from '@/lib/utils'
+import { getTextContent } from 'notion-utils'
 
 export function getPageContentText(post, pageBlockMap) {
   /**
@@ -24,34 +24,6 @@ export function getPageContentText(post, pageBlockMap) {
     return ''
   }
 
-  // todo: 清除更多无用标签
-  const removeTypeFlag = ['a', 'p', '‣']
-
-  /**
-   * 递归获取层层嵌套的数组
-   * @param {*} textArray
-   * @returns string
-   */
-  function getTextContent(textArray) {
-    if (typeof textArray === 'object' && isIterable(textArray)) {
-      let result = ''
-      for (const textObj of textArray) {
-        if (textArray.length > 1 && removeTypeFlag.includes(textArray[0])) {
-          return result
-        }
-        result = result + getTextContent(textObj)
-      }
-      return result
-    } else if (typeof textArray === 'string') {
-      if (checkStrIsUuid(textArray) && pageBlockMap.block[textArray]) {
-        return getBlockContentText(textArray)
-      } else if (textArray === pageBlockMap.block[postId].value.space_id) {
-        return ''
-      }
-      return textArray
-    }
-  }
-
   function getTransclusionReference(block) {
     const result = []
     const blockPointer = block.format.transclusion_reference_pointer