Content displayed on project pages before styles finish loading

[j-labbe]

Steps to reproduce

1. Open a project page
2. Reload
3. Observe that the content is displayed before styles finish loading

Expected behavior

The content should not be displayed until styles finish loading.

Actual behavior

The content is displayed before styles finish loading.

Recommended action

Add a loading indicator to the page. This can be something like a fade-in screen. The fade-in screen should be removed once styles finish loading. We should not use the default loader for the site because it will become repetitive and it should be reserved for the home page.

[j-labbe]

Related to #11, but styles are now doing funky things.