Catch exceptions in custom payload handling

Closes #192

Author: FlorianMichael

common/src/main/java/com/viaversion/viarewind/protocol/protocol1_7_6_10to1_8/packets/PlayerPackets1_8.java

@@ -366,7 +366,7 @@ public void register() {
 			@Override
 			public void register() {
 				map(Type.STRING);
-				handler(wrapper -> {
+				handlerSoftFail(wrapper -> {
 					String channel = wrapper.get(Type.STRING, 0);
 					if (channel.equals("MC|TrList")) {
 						wrapper.passthrough(Type.INT);  //Window Id

common/src/main/java/com/viaversion/viarewind/protocol/protocol1_8to1_9/packets/PlayerPackets1_9.java

@@ -504,7 +504,7 @@ public void register() {
 			@Override
 			public void register() {
 				map(Type.STRING);
-				handler(wrapper -> {
+				handlerSoftFail(wrapper -> {
 					String channel = wrapper.get(Type.STRING, 0);
 					if (channel.equals("MC|BEdit") || channel.equals("MC|BSign")) {
 						Item book = wrapper.passthrough(Type.ITEM);

common/src/main/java/com/viaversion/viarewind/protocol/protocol1_8to1_9/packets/WorldPackets1_9.java

@@ -55,10 +55,11 @@ public void register() {
 					final CompoundTag tag = wrapper.get(Type.NAMED_COMPOUND_TAG, 0);
 
 					final CompoundTag spawnData = tag.remove("SpawnData");
-					if (spawnData != null && spawnData.contains("id")) {
+					if (spawnData != null) {
 						final StringTag id = spawnData.remove("id");
-						if (id == null) return;
-						tag.put("EntityId", id);
+						if (id != null) {
+							tag.put("EntityId", id);
+						}
 					}
 				});
 			}