Prepare changelog for v3.43.0

Author: RiotRobot

CHANGELOG.md

@@ -1,10 +1,10 @@
-Changes in [3.43.0-rc.1](https://github.com/matrix-org/matrix-react-sdk/releases/tag/v3.43.0-rc.1) (2022-04-19)
-===============================================================================================================
+Changes in [3.43.0](https://github.com/matrix-org/matrix-react-sdk/releases/tag/v3.43.0) (2022-04-26)
+=====================================================================================================
 
 ## ✨ Features
  * Improve performance of switching to rooms with lots of servers and ACLs ([\#8347](https://github.com/matrix-org/matrix-react-sdk/pull/8347)).
  * Avoid a reflow when setting caret position on an empty composer ([\#8348](https://github.com/matrix-org/matrix-react-sdk/pull/8348)).
- * Add message right-click context menu as a labs feature ([\#5672](https://github.com/matrix-org/matrix-react-sdk/pull/5672)). Contributed by @SimonBrandner.
+ * Add message right-click context menu as a labs feature ([\#5672](https://github.com/matrix-org/matrix-react-sdk/pull/5672)).
  * Live location sharing - basic maximised beacon map ([\#8310](https://github.com/matrix-org/matrix-react-sdk/pull/8310)).
  * Live location sharing - render users own beacons in timeline ([\#8296](https://github.com/matrix-org/matrix-react-sdk/pull/8296)).
  * Improve Threads beta around degraded mode ([\#8318](https://github.com/matrix-org/matrix-react-sdk/pull/8318)).