Improving UI at Sign-in/up Section on Homepage and global font

[iamsaura8h]

hey @Vin205 ,
allow me to modify your wonderful web app e-nyanjyoti to improve its UI at certain section mentioned below in the screenshot.
along with this , i would also like to change the global font for the whole app to make more visually appealing.

here are suggestions for fonts, you can comment down which one i should go with :

Lato - A clean and modern sans-serif font, great for headings and body text.
Poppins - A popular sans-serif font with rounded edges, perfect for a welcoming and friendly feel.
Roboto - A highly legible sans-serif font, ideal for balancing both aesthetics and readability.
Nunito - A smooth, well-balanced sans-serif font that adds a soft and approachable touch to the design.
Merriweather - If you want to add a serif option, Merriweather works well for an authoritative, scholarly feel.

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please assign me this issue with gssoc-ext and hactoberfest-accepted labels.