Fix typos in comments and documentation across multiple files

[Dimitrolito]

This pull request addresses typographical errors in comments and documentation in several files across the codebase. These changes improve the readability and professionalism of the project without affecting functionality.

Key Changes:

1. Comments:

   • Corrected "a address" to "an address" in multiple locations.
   • Fixed incorrect usages such as "a HTTP" -> "an HTTP" and "a owned object" -> "an owned object."
   • Fixed redundant words like "preventing preventing" in comments.

2. Documentation:

   • Updated "an vector" to "a vector" in the Move documentation.
   • Clarified phrasing to improve overall comprehension.

---

Test Plan:
No functionality was changed, so testing was limited to confirming no compilation or linting issues in affected files.

---

Release Notes:

• Protocol:
• Nodes (Validators and Full nodes):
• Indexer:
• JSON-RPC:
• GraphQL:
• CLI:
• Rust SDK:
• REST API:

Impact:
No user-facing changes beyond improved documentation clarity.

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Name	Status	Preview	Comments	Updated (UTC)
sui-docs	✅ Ready (Inspect)	Visit Preview	💬 Add feedback	Jan 7, 2025 3:18am

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[stefan-mysten]

Thanks @Dimitrolito!