Create navigation bar

[gracexu94]

The nav bar should:

• [ ] Be responsive, with the logo sticking to the left side of the page and the navigation links sticking to the right. The navigation links should collapse into a hamburger menu icon on smaller screens which, when clicked, can expand and collapse the navigation links.
• [ ] Include working links to the Home, Mission, Story, Membership, News, Shop, and Contact pages, with News and Shop linking to external pages that open in a new tab when clicked.
• [ ] Match the current style of the navigation bar
• [ ] Be present at the top and bottom of every page on the site

Refer to the current DSC site and below screenshots for details.

[SeaJerry]

Merged, but need edits to the collapse effect and footer text.

[gracexu94]

Closing since the navigation bar has been created and the footer text has been updated. Created a new issue to track the collapse effect which still needs to be added.