Portal: UI tweaks

[MananTank]

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PR-Codex overview

This PR focuses on improving the styling and layout of various components in the application, enhancing usability and visual consistency.

Detailed summary

• Adjusted grid gap in Grid.tsx.
• Added a spacer div in page.mdx.
• Modified styles in InlineCode.tsx and Code.tsx.
• Changed button styles in chat-button.tsx and DocSearch.tsx.
• Updated DocLayout.tsx and TableOfContents.tsx for layout consistency.
• Enhanced styles in SDKCard.tsx, Subscribe.tsx, and AuthMethodsTabs.tsx.
• Improved tab styles in tabs.tsx and footer layout in PageFooter.tsx.
• Added animations in TableOfContents.tsx.
• Refined feedback dialog in Feedback.tsx.
• Updated link styles in Sidebar.tsx and Header.tsx.

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Project	Deployment	Preview	Comments	Updated (UTC)
docs-v2	Ready	Preview	Comment	Sep 24, 2025 11:58pm
thirdweb_playground	Ready	Preview	Comment	Sep 24, 2025 11:58pm
thirdweb-www	Ready	Preview	Comment	Sep 24, 2025 11:58pm

2 Skipped Deployments

Project	Deployment	Preview	Comments	Updated (UTC)
nebula	Skipped			Sep 24, 2025 11:58pm
wallet-ui	Skipped			Sep 24, 2025 11:58pm

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Latest commit: 7828afb

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✨ Finishing touches

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• Commit unit tests in branch 09-25-portal_ui_tweaks

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[MananTank]

• Portal: UI tweaks #8125 👈 (View in Graphite)
• [BLD-328] Portal: Update changelog page layout #8124
• main

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[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 56.26%. Comparing base (746afa3) to head (7828afb).
⚠️ Report is 1 commits behind head on bld-328.

Additional details and impacted files

@@           Coverage Diff            @@
##           bld-328    #8125   +/-   ##
========================================
  Coverage    56.26%   56.26%           
========================================
  Files          906      906           
  Lines        59208    59208           
  Branches      4175     4175           
========================================
  Hits         33311    33311           
  Misses       25794    25794           
  Partials       103      103           

Flag	Coverage Δ
packages	56.26% <ø> (ø)

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[github-actions]

size-limit report 📦

Path	Size	Loading time (3g)	Running time (snapdragon)	Total time
thirdweb (esm)	64.07 KB (0%)	1.3 s (0%)	283 ms (+179.43% 🔺)	1.6 s
thirdweb (cjs)	361.6 KB (0%)	7.3 s (0%)	876 ms (+23.57% 🔺)	8.2 s
thirdweb (minimal + tree-shaking)	5.73 KB (0%)	115 ms (0%)	99 ms (+2622.32% 🔺)	214 ms
thirdweb/chains (tree-shaking)	526 B (0%)	11 ms (0%)	59 ms (+1569.06% 🔺)	69 ms
thirdweb/react (minimal + tree-shaking)	19.14 KB (0%)	383 ms (0%)	147 ms (+3986.32% 🔺)	530 ms