Documentation Updates & Improvements

[ItsNature]

Overview

Description:
Documentation refresh

Changes:

• FAQs updates
• Rename the "Mods Settings" section to "Mod Options"
• Add overview/landing pages for most folders
• Add callouts that link to the matching integration guide in each module.
• Add private modules documentation

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Review Request Checklist

• Your code follows the style guidelines of this project.
• I have performed a self-review of my code.
• I have tested this change myself. (If applicable)
• I have made corresponding changes to the documentation. (If applicable)
• The branch name follows the projects naming conventions. (e.g. feature/add-module & bugfix/fix-issue)

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