[mob][photos] Update internal_changes.txt (#8019)

Added user-facing changes since commit 21da1d8

Author: prateekmedia

mobile/apps/photos/scripts/internal_changes.txt

@@ -1,3 +1,8 @@
+- Prateek: Move Add button to top in Albums, Contacts, and Location Tags screens for easier access
+- Prateek: Enable select all functionality in shared album date headers
+- Prateek: Fix "Send Link" feature to share only link text instead of image
+- Prateek: Fix continuous loading in map view when no images have location data
+- Prateek: Changelog dialog layout and scrolling improvements
 - Laurens: Minor tweaks to Ente Rewind
 - Laurens: (i) People Memory Lane feature
 - Laurens: Fix OCR for HEIC files on Android