Record the removing of dividers in CHANGELOG.md

We missed adding an entry into the CHANGELOG.md to document the changes
we made and why we had to make changes

opencrvs/opencrvs-core#7404

CHANGELOG.md

@@ -9,6 +9,7 @@
 - Remove `inputFieldWidth` from Number type form field
 - You can now configure the home screen application’s name and icons in your country configuration package as manifest.json and app icon files are moved from core to country config (check `src/client-static` folder)
 - Updated `allowedFileFormats` in signature fields to use MIME types (`image/png`, `image/jpg`, `image/jpeg`, `image/svg`) instead of simple file extensions. If you are already using the `allowedFileFormats` field in your implementation, please ensure to update the format accordingly.
+- Remove unnecessary UI dividers that add in various sections of the declaration forms(e.g the Death, Birth and Marriage forms) [#244](https://github.com/opencrvs/opencrvs-countryconfig/pull/244)
 
 ### Bug fixes