fix: explorer urls when adding networks (#200)

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## Description

Fix adding explorer urls when adding networks into metamask

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## Related Issue Or Context

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Closes: #187 

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## Types of changes

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- [x] Bug fix (non-breaking change which fixes an issue)
- [ ] New feature (non-breaking change which adds functionality)
- [ ] Breaking change (fix or feature that would cause existing
functionality to change)
- [ ] Documentation

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- [ ] I have commented my code, particularly in hard-to-understand
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signed the CLA bot

Co-authored-by: Saad Ahmed <[email protected]>

packages/widget/src/constants.ts

@@ -6,7 +6,7 @@ export const DEFAULT_ETH_DECIMALS = 18;
 export const MAINNET_EXPLORER_URL = 'https://scan.buildwithsygma.com/transfer/';
 export const TESTNET_EXPLORER_URL =
   'https://scan.test.buildwithsygma.com/transfer/';
-export const CHAIN_ID_URL = 'https://chainid.network/chains_mini.json';
+export const CHAIN_ID_URL = 'https://chainid.network/chains.json';
 
 type WsUrl = `ws://${string}` | `wss://${string}`;
 export const SUBSTRATE_RPCS: {

packages/widget/src/controllers/wallet-manager/manager.ts

@@ -22,6 +22,7 @@ type ChainData = {
   name: string;
   rpc: string[];
   nativeCurrency: { name: string; symbol: string; decimals: number };
+  explorers: Array<{ name: string; standard: string; url: string }>;
 };
 
 type ChainDataResponse = Array<ChainData>;
@@ -282,7 +283,8 @@ export class WalletController implements ReactiveController {
       chainId,
       name,
       nativeCurrency: { name: tokenName, symbol, decimals },
-      rpc
+      rpc,
+      explorers
     } = chainData;
     try {
       await provider.request({
@@ -296,7 +298,8 @@ export class WalletController implements ReactiveController {
               name: tokenName,
               symbol: symbol,
               decimals: decimals
-            }
+            },
+            blockExplorerUrls: explorers.map((explorer) => explorer.url)
           }
         ]
       });