Decentralized (netdata#11220)

* add blockchain-related apps to apps-groups

* add more blockchains

* fix spaces; add relevant comment

* fixes for ilya

* break ethereum nodes in their own groups

* remove empty lines

* Update collectors/apps.plugin/apps_groups.conf

Co-authored-by: Ilya Mashchenko <ilya@netdata.cloud>

Co-authored-by: Ilya Mashchenko <ilya@netdata.cloud>

collectors/apps.plugin/apps_groups.conf

@@ -25,6 +25,9 @@
 # To add process names with spaces, enclose them in quotes (single or double)
 # example: 'Plex Media Serv' "my other process".
 #
+# Note that spaces are not supported for process groups. Use a dash "-" instead.
+# example-process-group: process1 process2
+#
 # Wildcard support:
 # You can add an asterisk (*) at the beginning and/or the end of a process:
 #
@@ -314,3 +317,15 @@ p4: p4*
 git-services: gitea gitlab-runner
 
 freeswitch: freeswitch*
+
+# -------- web3 / blockchains ----------
+
+go-ethereum: geth*
+nethermind-ethereum: nethermind*
+besu-ethereum: besu*
+openEthereum: openethereum*
+urbit: urbit*
+bitcoin-node: *bitcoind* lnd*
+filecoin: lotus* lotus-miner* lotus-worker*
+solana: solana*
+web3: *hardhat* *ganache* *truffle* *brownie* *waffle*