Consolidated nav-bar components into App.js only.

[secondaryfun]

• Related Issue (include '#'): https://github.com/CotripperPlatform/CoTrip/issues/666 https://github.com/CotripperPlatform/CoTrip/issues/665

• Description of changes made:

1. Moved the nav-bar for each page into the respective Route on App.js
2. Added a couple placeholder functions to the Trip pages so the placeholder pages now render, allowing for testing of nav-bar render.
3. Removed nav-bars from all pages.
4. Modified Route on Member-Page to enable profile view lookups by prop.
5. Added profile image to correctly populate Nav-bar user image.

• Is the feature complete/bug resolved/etc..: Yes

• Any known bugs/strange behavior: Works cleanly, tested on all navigable pages currently on develop branch.

• Is there specific feedback you would like on these changes: no

• Screenshot(s):