Update main menu bar to bootstrap syntax.
Update mobile top values.
Update main.html
Update comments and base.scss.
Update styles.
Update other features to new navbar height.
Merge branch 'header-to-bootstrap-navbar' of https://github.com/theurere/spreed-webrtc-pub into theurere-header-to-bootstrap-navbar
Updated color scheme to fit with bootstrap components better.
Merge branch 'theurere-header-to-bootstrap-navbar'