Make ToWcChain async and update call sites

Refactored ToWcChain to be an async method and updated all usages to await its result. This change ensures proper asynchronous handling when retrieving chain metadata.

Author: 0xFirekeeper

Assets/Thirdweb/Runtime/Unity/Wallets/Reown/ReownWallet.cs

@@ -48,7 +48,7 @@ string[] excludedWalletIds
             else
             {
                 ThirdwebDebug.Log($"The chain with ID {activeChainId} is not supported by Reown. Adding it manually.");
-                wcChains.Add(ToWcChain(client, activeChainId));
+                wcChains.Add(await ToWcChain(client, activeChainId));
             }
 
             var appKitConfig = new AppKitConfig
@@ -241,7 +241,7 @@ public Task<EIP7702Authorization> SignAuthorization(BigInteger chainId, string c
 
         public async Task SwitchNetwork(BigInteger chainId)
         {
-            await AppKit.NetworkController.ChangeActiveChainAsync(ToWcChain(this.Client, chainId));
+            await AppKit.NetworkController.ChangeActiveChainAsync(await ToWcChain(this.Client, chainId));
             ThirdwebDebug.Log($"Switched Reown to chain ID {chainId}.");
         }
 
@@ -321,7 +321,7 @@ void OnAccountConnected(object sender, AccountConnectedEventArgs args)
             }
         }
 
-        private static Chain ToWcChain(ThirdwebClient client, BigInteger chainId)
+        private static async Task<Chain> ToWcChain(ThirdwebClient client, BigInteger chainId)
         {
             var wcChain = ChainConstants.Chains.All.FirstOrDefault(c => c.ChainReference == chainId.ToString());
 
@@ -330,7 +330,7 @@ private static Chain ToWcChain(ThirdwebClient client, BigInteger chainId)
                 return wcChain;
             }
 
-            var twChainMeta = Utils.GetChainMetadata(client, chainId).GetAwaiter().GetResult();
+            var twChainMeta = await Utils.GetChainMetadata(client, chainId);
             return new Chain(
                 chainNamespace: ChainConstants.Namespaces.Evm,
                 chainReference: chainId.ToString(),