Fix auto verification of contracts (#5099)

## Problem solved

Short description of the bug fixed or feature added

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## PR-Codex overview
This PR introduces the export of the `verifyContract` function from `ContractSourcesPage.tsx` and integrates it into the `CustomContractForm` component to send a verification request after deploying a contract.

### Detailed summary
- Changed `verifyContract` from a local function to an exported function in `ContractSourcesPage.tsx`.
- Imported `verifyContract` into `custom-contract.tsx`.
- Added a call to `verifyContract` in the `CustomContractForm` after contract deployment.

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Author: kumaryash90

apps/dashboard/src/app/(dashboard)/(chain)/[chain_id]/[contractAddress]/sources/ContractSourcesPage.tsx

@@ -34,7 +34,7 @@ interface VerificationResult {
   error?: string;
 }
 
-async function verifyContract(contract: ThirdwebContract) {
+export async function verifyContract(contract: ThirdwebContract) {
   try {
     const response = await fetch(
       "https://contract.thirdweb.com/verify/contract",

apps/dashboard/src/components/contract-components/contract-deploy-form/custom-contract.tsx

@@ -18,6 +18,7 @@ import {
   FormControl,
 } from "@chakra-ui/react";
 import { useMutation, useQuery } from "@tanstack/react-query";
+import { verifyContract } from "app/(dashboard)/(chain)/[chain_id]/[contractAddress]/sources/ContractSourcesPage";
 import { NetworkSelectorButton } from "components/selects/NetworkSelectorButton";
 import { SolidityInput } from "contract-ui/components/solidity-inputs";
 import { useTrack } from "hooks/analytics/useTrack";
@@ -537,6 +538,13 @@ export const CustomContractForm: React.FC<CustomContractFormProps> = ({
               // do the actual deployment
               const contractAddr = await deployMutation.mutateAsync(formData);
 
+              // send verification request - no need to await
+              verifyContract({
+                address: contractAddr,
+                chain: walletChain,
+                client: thirdwebClient,
+              });
+
               trackEvent({
                 category: "custom-contract",
                 action: "deploy",