chore: refactor getAction

[jxom]

supersedes #2404

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PR-Codex overview

This PR focuses on fixing an issue where getAction would ignore nullish return values.

Detailed summary

• Added type imports for PublicActions, WalletActions, Transport, Account, Chain, and RpcSchema
• Refactored getAction function to accept a more generic client type and handle minified function names
• Updated test to cover nullish return values from synchronous Client Actions

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Name	Status	Preview	Updated (UTC)
viem	✅ Ready (Inspect)	Visit Preview	Jun 20, 2024 9:30pm

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🦋 Changeset detected

Latest commit: 78aecc8

The changes in this PR will be included in the next version bump.

This PR includes changesets to release 1 package

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viem	Patch

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size-limit report 📦

Path	Size	Loading time (3g)	Running time (snapdragon)	Total time
viem (esm)	59.02 KB (0%)	1.2 s (0%)	1.3 s (+21.02% 🔺)	2.5 s
viem (cjs)	70.14 KB (0%)	1.5 s (0%)	1.5 s (+5.23% 🔺)	2.9 s
viem (minimal surface - tree-shaking)	6.1 KB (0%)	122 ms (0%)	69 ms (-55.79% 🔽)	191 ms
viem/accounts	73.87 KB (0%)	1.5 s (0%)	471 ms (+23.91% 🔺)	2 s
viem/accounts (tree-shaking)	18.94 KB (0%)	379 ms (0%)	284 ms (+172.87% 🔺)	663 ms
viem/actions	45.28 KB (0%)	906 ms (0%)	457 ms (-16.33% 🔽)	1.4 s
viem/actions (tree-shaking)	318 B (0%)	10 ms (0%)	5 ms (-43.39% 🔽)	15 ms
viem/chains	28.65 KB (0%)	574 ms (0%)	660 ms (-36.08% 🔽)	1.3 s
viem/chains (tree-shaking)	324 B (0%)	10 ms (0%)	5 ms (+36.32% 🔺)	15 ms
viem/chains/utils	1.02 KB (0%)	21 ms (0%)	8 ms (+50.98% 🔺)	29 ms
viem/ens	45.28 KB (0%)	906 ms (0%)	419 ms (-24.06% 🔽)	1.4 s
viem/ens (tree-shaking)	22 KB (0%)	440 ms (0%)	437 ms (-0.19% 🔽)	877 ms
viem/siwe	29.97 KB (0%)	600 ms (0%)	493 ms (+56.56% 🔺)	1.1 s
viem/siwe (tree-shaking)	28.81 KB (0%)	577 ms (0%)	748 ms (+100.01% 🔺)	1.4 s