Changes to Single-call composition for the explorer home page first paint

added the optional property icmMessages/items/originToken to the response with the 200 status

added the required property blocks/items/transactions/items/contractAddress to the response with the 200 status

added the required property transactions/items/contractAddress to the response with the 200 status

added the required property stats/gasUtilization to the response with the 200 status