Improved navbar and footer with minor font and button changes

[itshypon]

Pull Request for FIFA WORLD CUP 2022

Issue Title : Change navbar, footer and button design

• Info about the related issue (Aim of the project) :
• Name: Himanshu
• GitHub ID: https://github.com/itshypon
• Idenitfy yourself: Hactoberfest Participant

Closes: #9

Describe the add-ons or changes you've made 📃

I have added navbar using bootstrap and did some changes in footer to make it look a little better. I changed font of some text to Montserrat and did a little change in one button.

[Nirvik07]

@itshypon Write the issue title?

[itshypon]

@Nirvik07 Yeah done, kindly give it hacktoberfest-accepted label so that it will be added in my hactoberfest profile atleast.

[Nirvik07]

@itshypon all done check once. delete the earlier pr.

[itshypon]

@Nirvik07 done