fix: add missing CSS styling to Help Center page layout (#623)

[biswajit760]

Description

This PR resolves the layout and styling issues on the Help Center page. The page was previously missing proper CSS styling, causing misalignment, inconsistent spacing, and readability issues. The changes include:

• Added container styling for proper alignment and max-width.

• Improved spacing and padding for headings, descriptions, and sections.

• Applied consistent font styles and sizes.

• Fixed responsive behavior for different screen sizes.

#623 Issue No

Current page

Old version

Type of change

• Bug fix
• New feature
• Improvement
• Documentation update

Checklist:

• My code follows the style guidelines of this project
• I have performed a self-review of my code
• I have commented my code where necessary
• I have added tests that prove my fix is effective or that my feature works
• I have made corresponding changes to the documentation

[github-actions]

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