Fix testnet filtering in NetworkSelectors

[gregfromstl]

Fixed issue with the disableTestnets filter in SingleNetworkSelector to properly filter out testnets regardless of chainIds being provided.

🤖 Generated with Claude Code

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PR-Codex overview

This PR refactors the logic in the chainsToShow computation within the NetworkSelectors.tsx component to improve readability and efficiency by using a chains variable that is filtered based on props.disableTestnets and props.chainIds.

Detailed summary

• Introduced a chains variable to hold allChains.
• Added a filter for chains to exclude testnets if props.disableTestnets is true.
• Simplified the filtering of chains based on props.chainIds using a Set.
• Removed redundant filtering logic that combined testnet and chain ID checks into a single return statement.

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[gregfromstl]

Merge activity

• May 10, 2:04 AM EDT: The merge label 'merge-queue' was detected. This PR will be added to the Graphite merge queue once it meets the requirements.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 54.59%. Comparing base (8b50779) to head (6877c6b).
Report is 1 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #7001   +/-   ##
=======================================
  Coverage   54.59%   54.59%           
=======================================
  Files         903      903           
  Lines       57935    57935           
  Branches     3970     3970           
=======================================
  Hits        31632    31632           
  Misses      26202    26202           
  Partials      101      101           

Flag	Coverage Δ
packages	54.59% <ø> (ø)

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[github-actions]

size-limit report 📦

Path	Size	Loading time (3g)	Running time (snapdragon)	Total time
thirdweb (esm)	54.21 KB (0%)	1.1 s (0%)	195 ms (+106.08% 🔺)	1.3 s
thirdweb (cjs)	193.92 KB (0%)	3.9 s (0%)	405 ms (+18.14% 🔺)	4.3 s
thirdweb (minimal + tree-shaking)	5.68 KB (0%)	114 ms (0%)	88 ms (+870.66% 🔺)	202 ms
thirdweb/chains (tree-shaking)	524 B (0%)	11 ms (0%)	33 ms (+1385.07% 🔺)	44 ms
thirdweb/react (minimal + tree-shaking)	19.55 KB (0%)	391 ms (0%)	112 ms (+458% 🔺)	503 ms