Docs fix

[coiseiw]

Style edition for changelog and FAQ page

Also modifying the answer to the first FAQ question to reflect the new install process

[Copilot]

Pull Request Overview

This PR applies style improvements to the documentation, specifically updating the changelog and FAQ page formatting to use consistent styling. The main purpose is to enhance visual presentation and update installation guidance.

• Standardizes FAQ question formatting with styled HTML spans for better visual hierarchy
• Converts changelog heading structure from inconsistent markdown to uniform HTML styling
• Updates the first FAQ answer to reference Docker installation instead of manual setup

Reviewed Changes

Copilot reviewed 4 out of 5 changed files in this pull request and generated 2 comments.

File	Description
mkdocs.yml	Updates custom directory path for theme overrides
doc/user_manual/crackers_binary.md	Fixes grammar error ("other cracker" to "other crackers")
doc/faq_tips/faq.md	Reformats all FAQ questions with HTML styling and updates installation answer
doc/changelog.md	Standardizes all section headings with consistent HTML styling

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