adding checksum conversion (#12209)

ui/helpers/utils/icon-factory.js

@@ -1,4 +1,7 @@
-import { isValidHexAddress } from '../../../shared/modules/hexstring-utils';
+import {
+  isValidHexAddress,
+  toChecksumHexAddress,
+} from '../../../shared/modules/hexstring-utils';
 
 let iconFactory;
 
@@ -25,7 +28,9 @@ IconFactory.prototype.iconForAddress = function (
   // So the flag indicates whether the address of tokens currently on the tokenList is checksum or not.
   // And since the token.address from allTokens is checksumaddress
   // tokenAddress have to be changed to lowercase when we are using dynamic list
-  const addr = useTokenDetection ? address.toLowerCase() : address;
+  const addr = useTokenDetection
+    ? address.toLowerCase()
+    : toChecksumHexAddress(address);
   if (iconExistsFor(addr, tokenList)) {
     return imageElFor(addr, useTokenDetection, tokenList);
   }