fix: fix signature requested analytics

[elefantel]

Description

This PR fixes an issue where the Signature Requested mobile analytics event was not being sent when a dapp sends a sign request. Only the Signature Approved analytics where being sent.

Examples:
From MetaMask SDK Wagmi test dapp (mobile browser):

{"event": "Signature Requested", "properties": {"account_type": "MetaMask", "chain_id": "11155111", "dapp_host_name": "wagmi.io", "request_platform": "web-mobile", "request_source": "MetaMask-SDK-Remote-Conn", "signature_type": "personal_sign", "version": "N/A"}, "type": "track"}

From WalletConnect test dapp (mobile browser):

{"event": "Signature Requested", "properties": {"account_type": "MetaMask", "chain_id": "11155111", "dapp_host_name": "appkit-lab.reown.com", "request_platform": undefined, "request_source": "WalletConnect", "signature_type": "eth_signTypedData_v4", "version": "N/A"}, "type": "track"}

From iOS SDK test dapp:

{"event": "Signature Requested", "properties": {"account_type": "MetaMask", "chain_id": "11155111", "dapp_host_name": "dubdapp.com", "request_platform": "ios", "request_source": "MetaMask-SDK-Remote-Conn", "signature_type": "eth_signTypedData_v4", "version": "N/A"}, "type": "track"}

Related issues

Fixes: SDK-65

Manual testing steps

1. Go to this mmsdk-wagmi-test-dapp on mobile device
2. Connect to MetaMask
3. Sign message
4. Check the logs that Signature Requested is being logged to analytics and also check Segment that the event is being received.

Pre-merge author checklist

• I’ve followed MetaMask Contributor Docs and MetaMask Mobile Coding Standards.
• I've completed the PR template to the best of my ability
• I’ve included tests if applicable
• I’ve documented my code using JSDoc format if applicable
• I’ve applied the right labels on the PR (see labeling guidelines). Not required for external contributors.

Pre-merge reviewer checklist

• I've manually tested the PR (e.g. pull and build branch, run the app, test code being changed).
• I confirm that this PR addresses all acceptance criteria described in the ticket it closes and includes the necessary testing evidence such as recordings and or screenshots.

[github-actions]

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[sonarcloud]

Quality Gate passed

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
100.0% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarCloud