docs(x/group): fix submit-proposal help json example (#17546)

(cherry picked from commit 6b868a1)

x/group/client/cli/tx.go

@@ -566,13 +566,13 @@ Parameters:
 		"from_address": "cosmos1...",
 		"to_address": "cosmos1...",
 		"amount":[{"denom": "stake","amount": "10"}]
-		"title": "My proposal",
-		"summary": "This is a proposal to send 10 stake to cosmos1...",
 	}
 	],
 	// metadata can be any of base64 encoded, raw text, stringified json, IPFS link to json
 	// see below for example metadata
 	"metadata": "4pIMOgIGx1vZGU=", // base64-encoded metadata
+	"title": "My proposal",
+	"summary": "This is a proposal to send 10 stake to cosmos1...",
 	"proposers": ["cosmos1...", "cosmos1..."],
 }