Improving UI for the landing page.

[Tanish2000]

We can improve the user interface of the landing page of the project. I can make it better by using Bootstrap and core CSS.
All the contents are not visible properly. I can add a glass background, which will look good and the details will be visible properly.

As per the contribution guidelines, @katjaq you are looking for frontend guys. Please assign these to me. I can work on it. 🙏