Add footer metadata detailed guides, supporting pages and collections

For consistency I have added footer metadata to the above pages
• include partial to pages
• add footer_meta: true local to header
• nest styles for detailed guides to correct layout issues
• bumped toolkit gem version to include measurement variables used

https://www.agileplannerapp.com/boards/105200/cards/6292
If these `<div>` elements are not going to be named can we just delete them? Having an un-named semantic-less elements is just adding extra weight to the page.