"Battle Fog", which is the name of the Chinese Minecraft player community, describes the dense fog that envelops the surrounding area when fighting the Ender Dragon in the End，Bedrock Edition of the End needs a "battle fog". This parity is present in the latest Java Edition and Bedrock Edition

Steps to Reproduce

1. Create a world, enter the End
2. Observe the fog of the End

Observed result

In Bedrock Edition, the end's fog does not change whether the player defeats the ender dragon or not

Expected result

In Java Edition, when the player fights the ender dragon in the End, the fog gathers, and when the player defeats the ender dragon, the fog will dissipate，Bedrock Edition doesn't do that