refactor(views): moved the admin header and footer out of themes.

The admin header and footer php files were included in the themes directory. This organization would have allowed users to change the admin page styling and more easily introduce problems. The decision has been made to move the header and footer files out of themes and into the views folder so it cannot be changed by switching themes.
refactor(resources): moved the admin css stylesheets out of themes

The stylesheets for the admin page were included in the themes directory. The decision has been made to move the stylesheets out of themes and into the views folder so it cannot be changed by switching themes.

Also using LESS for stylesheets now.