Add explicit chain_ids to the default config

.hmy/wallet.ini

@@ -1,4 +1,5 @@
 [main]
+chain_id = 1
 bootnode = /ip4/100.26.90.187/tcp/9874/p2p/Qmdfjtk6hPoyrH1zVD9PEH4zfWLo38dP2mDvvKXfh3tnEv
 bootnode = /ip4/54.213.43.194/tcp/9874/p2p/QmZJJx6AdaoEkGLrYG4JeLCKeCKDjnFz2wfHNHxAqFSGA9
 bootnode = /ip4/13.113.101.219/tcp/12019/p2p/QmQayinFSgMMw5cSpDUiD9pQ2WeP6WNmGxpZ6ou3mdVFJX
@@ -22,6 +23,7 @@ rpc = l3.t.hmny.io:14555
 rpc = s3.t.hmny.io:14555
 
 [local]
+chain_id = 2
 bootnode = /ip4/127.0.0.1/tcp/19876/p2p/Qmc1V6W7BwX8Ugb42Ti8RnXF1rY5PF7nnZ6bKBryCgi6cv
 shards = 2
 
@@ -36,6 +38,7 @@ rpc = 127.0.0.1:14558
 rpc = 127.0.0.1:14560
 
 [beta]
+chain_id = 2
 bootnode = /ip4/54.213.43.194/tcp/9868/p2p/QmZJJx6AdaoEkGLrYG4JeLCKeCKDjnFz2wfHNHxAqFSGA9
 bootnode = /ip4/100.26.90.187/tcp/9868/p2p/Qmdfjtk6hPoyrH1zVD9PEH4zfWLo38dP2mDvvKXfh3tnEv
 bootnode = /ip4/13.113.101.219/tcp/12018/p2p/QmQayinFSgMMw5cSpDUiD9pQ2WeP6WNmGxpZ6ou3mdVFJX
@@ -50,6 +53,7 @@ rpc = l1.b.hmny.io:14555
 rpc = s1.b.hmny.io:14555
 
 [pangaea]
+chain_id = 3
 bootnode = /ip4/54.86.126.90/tcp/9889/p2p/Qmdfjtk6hPoyrH1zVD9PEH4zfWLo38dP2mDvvKXfh3tnEv
 bootnode = /ip4/52.40.84.2/tcp/9889/p2p/QmZJJx6AdaoEkGLrYG4JeLCKeCKDjnFz2wfHNHxAqFSGA9
 shards = 4