Fix: Documentation Typos and Content Improvements

[cypherpepe]

Description

Fixed multiple typos and improved phrasing across documentation files. Adjusted inconsistencies in terminology and formatting for better clarity and readability.

Relevant files updated:

• README.md
• docs/05-Dapp-connections.md
• docs/08-Analytics-and-Feature-Flags.md
• docs/09-Keystone.md
• docs/10-WalletConnect.md
• docs/11-Fireblocks.md
• docs/11-Seedless.md

Changes

• Typo corrections: delted → deleted, choosen → chosen, experies → expires.
• Updated structure: Improved sentence flow for technical clarity in onboarding flows and process descriptions.
• Syntax fixes: Adjusted formatting issues and added missing punctuation.

Testing

• Visual proofreading for grammar and spelling errors.

Checklist for the author

Tick each of them when done or if not applicable.

• I've covered new/modified business logic with Jest test cases.
• I've tested the changes myself before sending it to code review and QA.

[meeh0w]

Thank you! ❤️