Update Charon doc for v1.0

[boulder225]

🎯 Problem to be solved

Charon documentation needs to be updated to reflect the upcoming v1.0 release. The current documentation may contain outdated information, beta software warnings, and missing details about new flags or configuration options.

🛠️ Proposed solution

• Review the entire doc in the "next" branch and identify areas that require updates or modifications.
• Remove any warnings or references to beta software, as v1.0 will be a stable release.
• Add explanations and examples for any new flags, configuration options, or features
• Run the 'Charon help' commands and capture the updated output

[boulder225]

Hey team! Please add your planning poker estimate with Zenhub @gsora @KaloyanTanev