Update w3ps1 logo, move DotNFT & IBC Prague

data/23/events/dotnft/index.toml

@@ -1,6 +1,6 @@
 name = "DotNFT 2023"
 shortname = "DotNFT"
-types = ["conference"]
+types = ["meetup"]
 status = "planning"
 chains = ["polkadot"]
 org = "[KodaDot](https://kodadot.xyz/)"

data/23/events/ibcprague/index.toml

@@ -1,6 +1,6 @@
 name = "IBCPrague 2023"
 shortname = "IBCPrague"
-types = ["conference"]
+types = ["meetup"]
 status = "planning"
 chains = ["cosmos"]
 org = ""