detect primary type if missing in sign typed data input

[joaquim-verges]

Changes

• Linear: https://linear.app/thirdweb/issue/INF-171/
• Here is the problem being solved.
• Here are the changes made.

How this PR will be tested

• Open the dashboard and click X. Result: A modal should appear.
• Call the /foo/bar API. Result: Returns 200 with "baz" in the response body.

Output

(Example: Screenshot/GIF for UI changes, cURL output for API changes)

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PR-Codex overview

This PR focuses on enhancing the signTypedData function to handle cases where the primaryType is not provided, allowing for automatic detection of the primary type. It also introduces tests to ensure the functionality works correctly in both scenarios.

Detailed summary

• Added logic to detect primaryType in sign-typed-data.ts if not provided.
• Updated the call to signTypedData to use the parsed primary type.
• Introduced new tests in sign-typed-data.test.ts for signing typed data with and without a primary type.
• Created a structured test data object for testing purposes.

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[joaquim-verges]

• detect primary type if missing in sign typed data input #885 👈 (View in Graphite)
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