chore: update changelog and whats new for 4.0 beta 3

Author: sds100

CHANGELOG.md

@@ -1,6 +1,6 @@
 ## [4.0.0 Beta 3](https://github.com/sds100/KeyMapper/releases/tag/v4.0.0-beta.03)
 
-#### TO BE RELEASED
+#### 25 November 2025
 
 ## Added
 - #1871 action to modify any system settings.

base/src/main/assets/whats-new.txt

@@ -15,6 +15,8 @@ You can now remap ALL buttons when the screen is off (including the power button
 • Constraints for foldable hinge open/closed
 • Shortcuts on the trigger screen to guide setup
 • Select notification and alarm sounds for Sound action
+• Constraints for keyboard is showing
+• Switch next to record trigger button to use PRO mode
 
 ⚙️ Enhanced Controls
 • Enable or disable all key maps in a group at once