Shield fixes

[shrobbyy]

The attacker to hit on a shield hears the regular player damage sound despite the damage being blocked. Only the blocking player gets to hear the shield blocking sound, but both players are supposed to hear the shield blocking sound.
The second thing is that the attacker does not get to hear the shield disable (item break) sound, just the blocking player.

More about this issue:
https://bugs.mojang.com/browse/MC-105068?jql=project%20%3D%20MC%20AND%20status%20%3D%20Open%20AND%20text%20~%20%22pvp%22

The shield also has an invisible warp-up delay, so you visually block earlier than you block actually. It would be nice to have a setting to make that warm-up delay visible by tinting the shield into another color.

[lowercasebtw]

This is more suited for like Debugify