Add Bootstrap UI Framework

[hsr205]

Description: Add Bootstrap frontend UI framework
Goal: Provides a simpler UI that is user friendly, clean and seamless for user's experience
Enablers: Implement Bootstrap UI framework

[charles-carlson]

Description: Transform current implementation to utilize Bootstrap frontend UI Framework
Goal: Provides a simpler UI that is user friendly, clean and seamless for user's experience
Enablers: Implement Bootstrap UI framework through refactoring existing codebase
Acceptance Scenario:

1. Refactor Header to utilize bootstrap components
   i. All elements must have bootstrap classes and components
2. Refactor Main Components to use Bootstrap Components rather than unwieldy div elements
   a. Refactor Answer Page
   i. All elements must have bootstrap classes and components
   b. Refactor BaseComponents
   i. All elements must have bootstrap classes and components
   c. Refactor NewAnswer Page
   i. Adding a new answer on a modal form on AnswerPage of a Question using bootstrap
   d. Refactor NewQuestion Page
   ii. Adding a new question on a modal form on QuestionPage using bootstrap
   e. Refactor Question Page
   i. All elements must have bootstrap classes and components
   f. Refactor SideBarNav
   i. All elements must have bootstrap classes and components
   g. Refactor Tag Page
   i. All elements must have bootstrap classes and components
3. Use Bootstrap for LoginPage, tied to Issue Add Login-Page #18 to create a seamless user experience
   a. Ensure signup page is using bootstrap elements
   b. Ensure login page is using bootstrap elements
   c. Ensure logout button is a bootstrap element