chore: update CHANGELOG

Author: nytamin

CHANGELOG.md

@@ -19,5 +19,9 @@ The log below details the changes during development of this version:
   Before, the `data`-payload was only sent using the `updateData()` method. Now it must be sent on `load()` as well.
 * 2025-05-16: Change return values of Graphic methods to optionally be `undefined`.
   (An `undefined` value should be treated as `{ code: 200 }`)
-* 2025-xx-xx: Add optional `skipAnimation` argument to `updateAction` and `customAction`.
+* 2025-06-09: Rename the "v1-draft-0" to "v1" in preparation for the first release.
+* 2025-06-13: Add requirement on manifest file name.
+  The manifest file must now have the suffix `".ograf"`.
+  Before, there where no requirements on the manifest file name.
+* 2025-06-13: Add optional `skipAnimation` argument to `updateAction` and `customAction`.
   Before, it was only included in `playAction` and `stopAction`.