Internal Botttom Navigation Bar to navigate across sections

[Pavan-Sai-padavala]

Description

currently, to go to next section, we have to move to top and then select what is the next concept. There can be a bottom nav bar which shows what is the next and previous concepts.

[khushijohri2001]

Requesting to assign this issue to me.

[Pavan-Sai-padavala]

I am working on it

[Pavan-Sai-padavala]

Bhaiyya, please add hactoberfest 2023 label and assign this issue to me

[Vishal-raj-1]

@Pavan-Sai-padavala This complete Repo have hacktoberfest tag, so we don't need to add it individual PRs