disable verify for not supported VM

apps/etherscan/src/app/views/VerifyView.tsx

@@ -41,7 +41,7 @@ export const VerifyView: React.FC<Props> = ({
   useEffect(() => {
     if (client && client.on) {
       client.on("blockchain" as any, 'networkStatus', (result) => {
-        setNetworkName(`${result.network.name} ${result.network.id !== '-' ? `(Chain id: ${result.network.id})` : ''}`)
+        setNetworkName(`${result.network.name} ${result.network.id !== '-' ? `(Chain id: ${result.network.id})` : '(Not supported)'}`)
       })
     }
     return () => {
@@ -248,7 +248,8 @@ export const VerifyView: React.FC<Props> = ({
                 !touched.contractName ||
                 !touched.contractAddress ||
                 (touched.contractName && errors.contractName) ||
-                (touched.contractAddress && errors.contractAddress) 
+                (touched.contractAddress && errors.contractAddress) ||
+                (networkName === 'VM (Not supported)')
               ? true 
               : false}
             />