Fix: Adds checkout error boundary

[gregfromstl]

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PR-Codex overview

This PR focuses on updating the ErrorPage component, removing the ThemeHandler, and refactoring the layout and CheckoutEmbed component to improve error handling and theming functionality.

Detailed summary

• Deleted ThemeHandler.client.tsx.
• Added ErrorPage component in error.tsx for displaying error messages.
• Updated CheckoutLayout to remove ThemeHandler and modified layout structure.
• Refactored CheckoutEmbed to support dynamic theming using useTheme.

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Latest commit: 2edee65

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[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 55.03%. Comparing base (9d40b13) to head (2edee65).
Report is 1 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #6962   +/-   ##
=======================================
  Coverage   55.03%   55.03%           
=======================================
  Files         898      898           
  Lines       57342    57342           
  Branches     3967     3967           
=======================================
  Hits        31558    31558           
  Misses      25687    25687           
  Partials       97       97           

Flag	Coverage Δ
packages	55.03% <ø> (ø)

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[github-actions]

size-limit report 📦

Path	Size	Loading time (3g)	Running time (snapdragon)	Total time
thirdweb (esm)	51.01 KB (0%)	1.1 s (0%)	177 ms (+179.99% 🔺)	1.2 s
thirdweb (cjs)	143.13 KB (0%)	2.9 s (0%)	305 ms (+116.38% 🔺)	3.2 s
thirdweb (minimal + tree-shaking)	5.67 KB (0%)	114 ms (0%)	84 ms (+1500.9% 🔺)	197 ms
thirdweb/chains (tree-shaking)	514 B (0%)	11 ms (0%)	19 ms (+1111.66% 🔺)	29 ms
thirdweb/react (minimal + tree-shaking)	19.47 KB (0%)	390 ms (0%)	98 ms (+576.25% 🔺)	488 ms