chore: bump version to 2.0.16

as title

Log:

Author: mhduiy

debian/changelog

@@ -1,3 +1,18 @@
+dde-shell (2.0.16) unstable; urgency=medium
+
+  * feat: implement trash empty state detection
+  * feat: add camera status OSD notifications
+  * i18n: Updates for project Deepin Desktop Environment (#1315)
+  * fix: disable dock panel dragging when locked
+  * fix: correct bubble ID handling in notification system
+  * feat: set focus to first expanded notification item
+  * feat: enhance window identification with ApplicationManager
+  * feat: add modal property to notification setting menu
+  * refactor: optimize expired notification cleanup implementation
+  * Revert "feat: add trash file drop support"
+
+ -- zhangkun <zhangkun2@uniontech.com>  Thu, 30 Oct 2025 21:44:35 +0800
+
 dde-shell (2.0.15) unstable; urgency=medium
 
   * fix: add missing definitions for dockpanel