Properly resync player on Player#setPlayerProfile (#9080)

Currently breaking are potion effects and the XP bar, both are now being resent to make the client know about them again.

patches/server/Player.setPlayerProfile-API.patch

@@ -166,6 +166,12 @@ index 0000000000000000000000000000000000000000..00000000000000000000000000000000
 +        connection.internalTeleport(loc.getX(), loc.getY(), loc.getZ(), loc.getYaw(), loc.getPitch(), java.util.Collections.emptySet());
 +        net.minecraft.server.MinecraftServer.getServer().getPlayerList().sendAllPlayerInfo(handle);
 +
++        // Resend their XP and effects because the respawn packet resets it
++        connection.send(new net.minecraft.network.protocol.game.ClientboundSetExperiencePacket(handle.experienceProgress, handle.totalExperience, handle.experienceLevel));
++        for (net.minecraft.world.effect.MobEffectInstance mobEffect : handle.getActiveEffects()) {
++            connection.send(new net.minecraft.network.protocol.game.ClientboundUpdateMobEffectPacket(handle.getId(), mobEffect));
++        }
++
 +        if (this.isOp()) {
 +            this.setOp(false);
 +            this.setOp(true);