Navbar: Add Tooltips
Navbar: Add Tooltips

Closes #198
- Adds tooltips to the navbar, removing the need for people to guess
what the icons mean

felixrieseberg/xplat,Pandacorn/deco,traceyt/xplat,Azure/deco,Pandacorn/deco,Azure/deco,azure-storage/deco,traceyt/xplat,azure-storage/deco,Azure/deco,Pandacorn/deco,felixrieseberg/xplat,traceyt/xplat,felixrieseberg/xplat,azure-storage/deco