made some random changes

[Gourav830]

This pull request updates the 01-color-flipper project with several changes to the page's appearance and color theme. The most significant updates include adjustments to color variables in the CSS, as well as changes to font sizes for headings.

Styling and Theme Updates:

• Updated several CSS color variables in styles.css to use different HSL values, altering the primary and accent color palette. (--clr-primary-4, --clr-primary-8, --clr-red-light) [1] [2]
• Increased the font size of the main heading (h1) from 3rem to 5rem and the h4 heading from 1rem to 8rem for a more prominent display. [1] [2]

Content Update:

• Modified the main page heading in index.html to clarify that the color flipper uses HTML, CSS, and JS.