Restart Rails when .env file changes
Be consistent between the category list and individual categories

* use 'contents' rather than 'subCategories' for child items
* get rid of the CategoryNavigation entity and use Category instead
Move skip to main content link to top of page.
Allow fake category repository to return a subcategory via #find
Add content to YML files.
Add footer links to HTML.
Style the footer links.
Remove duplicate YMl entry.
Change referenced font.
Restructure language link in the footer.
Style language bar.
Add globe icon to CSS
Add medium weight font to typography stylesheet
Style the footer.
Add icon to the font file for use in the footer.
Make the paths environment agnostic.
Remove comments.
Style the footer links.
Style language bar.
Style the footer.