Add redirect functionality and styles to index.html; create styles.cs…

[httpdss]

…s and update .gitignore

Issue

Description

Checklist

• I have read the contributing guidelines.
• My code follows the code style of this project.
• I have performed a self-review of my own code.
• I have added tests that prove my fix is effective or that my feature works.
• New and existing unit tests pass locally with my changes.
• I have updated the documentation accordingly.

Screenshots (if applicable)

Additional Comments