Add show more organizations icon in user's profile (#32986)

Close #32952

# ⚠️ Doc update is required


![image](https://github.com/user-attachments/assets/296c5109-8fc1-43ea-b7dc-e79919cc1f9a)

![image](https://github.com/user-attachments/assets/d30980f6-22e4-4b97-9143-c750dc399da6)


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⚠️This PR refuses to be cherry-picked by any forked projects without any
mentions.

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Co-authored-by: wxiaoguang <wxiaoguang@gmail.com>

custom/conf/app.example.ini

@@ -1339,6 +1339,9 @@ LEVEL = Info
 ;; Number of repos that are displayed on one page
 ;REPO_PAGING_NUM = 15
 
+;; Number of orgs that are displayed on profile page
+;ORG_PAGING_NUM = 15
+
 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
 ;[ui.meta]