Fix typos and improve documentation clarity

[Pricstas]

This pull request addresses various typos and minor inconsistencies in the documentation across multiple files.
The changes improve readability and ensure consistent terminology throughout the project.

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PR-Codex overview

This PR primarily focuses on correcting minor grammatical issues and enhancing clarity in documentation across various files related to the thirdweb project.

Detailed summary

• Updated comments in ethers6.ts for clarity on Signer and Wallet conversion.
• Revised phrases in page.mdx files for grammatical accuracy.
• Ensured consistency in describing modules across multiple ERC token contracts.

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Latest commit: e9a90d0

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[kien-ngo]

looking good. Thanks for contributing!!

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Name	Status	Preview	Comments	Updated (UTC)
thirdweb-www	✅ Ready (Inspect)	Visit Preview	💬 Add feedback	Dec 23, 2024 11:12pm

[graphite-app]

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