Add ENS support for Sepolia (#4422).

Author: ricmoo

src.ts/providers/network.ts

@@ -407,7 +407,7 @@ function injectCommonNetworks(): void {
     registerEth("rinkeby", 4, { ensNetwork: 4 });
     registerEth("goerli", 5, { ensNetwork: 5 });
     registerEth("kovan", 42, { ensNetwork: 42 });
-    registerEth("sepolia", 11155111, { });
+    registerEth("sepolia", 11155111, { ensNetwork: 11155111 });
 
     registerEth("classic", 61, { });
     registerEth("classicKotti", 6, { });