Add a release note

Author: crazytonyli

RELEASE-NOTES.txt

@@ -2,6 +2,7 @@
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 * [*] Bug fix: Reader now scrolls to the top when tapping the status bar. [#21914]
 * [*] Fix an issue in Menu screen where it fails to create default menu items. [#21949]
+* [*] [internal] Refactor how site's pages are loaded in Site Settings -> Homepage Settings. [#21974]
 
 23.6
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