[WebGL] Force eth_signTypedData_v4 webgl session req

[0xFirekeeper]

Potential fix to some wallets sometimes failing to sign single chain init eth_signTypedData requests in WebGL

---

PR-Codex overview

This PR updates the thirdweb-unity-bridge.js file by adding a TypedDataEncoder class and resolving naming conventions.

Detailed summary

• Added TypedDataEncoder class for encoding data types
• Improved naming conventions for better readability and consistency

The following files were skipped due to too many changes: Assets/WebGLTemplates/Thirdweb/lib/thirdweb-unity-bridge.js

✨ Ask PR-Codex anything about this PR by commenting with /codex {your question}

[github-actions]

Test Results for StandaloneLinux64

  1 files  ±0   16 suites  ±0   8m 12s ⏱️ +16s
102 tests ±0  102 ✅ ±0  0 💤 ±0  0 ❌ ±0 
106 runs  ±0  106 ✅ ±0  0 💤 ±0  0 ❌ ±0 

Results for commit beeda4d. ± Comparison against base commit ac7d3ca.

♻️ This comment has been updated with latest results.

[github-actions]

Test Results for iOS

  1 files  ±0   16 suites  ±0   8m 4s ⏱️ +34s
102 tests ±0  102 ✅ ±0  0 💤 ±0  0 ❌ ±0 
106 runs  ±0  106 ✅ ±0  0 💤 ±0  0 ❌ ±0 

Results for commit beeda4d. ± Comparison against base commit ac7d3ca.

♻️ This comment has been updated with latest results.

[github-actions]

Test Results for WebGL

  1 files  ±0   16 suites  ±0   8m 4s ⏱️ +22s
102 tests ±0  102 ✅ ±0  0 💤 ±0  0 ❌ ±0 
106 runs  ±0  106 ✅ ±0  0 💤 ±0  0 ❌ ±0 

Results for commit beeda4d. ± Comparison against base commit ac7d3ca.

♻️ This comment has been updated with latest results.

[github-actions]

Test Results for Android

  1 files  ±0   16 suites  ±0   8m 19s ⏱️ +4s
102 tests ±0  102 ✅ ±0  0 💤 ±0  0 ❌ ±0 
106 runs  ±0  106 ✅ ±0  0 💤 ±0  0 ❌ ±0 

Results for commit beeda4d. ± Comparison against base commit ac7d3ca.

♻️ This comment has been updated with latest results.