Fixes hero in sheer.
Merge branch 'gh-pages' of github.com:cfpb/cfgov-refresh into gh-pages
Updates post filter margins.
Form filter column styles.
Updates layout and summary.
Update sheer template to use content_main_narrow on post page.
Updates Sheer template landing page to use max-width summary text.
Adds new form elements to filters in Sheer template.
Updates todos.
Updates filters pattern.
Updates reset button.
Updates reset button.
Refactoring filters patterns.
Refactors form-group_header to form-label-header.
Refactors filters pattern.
Docs updates for filters.
Form pattern refactoring.
Update form pattern usage.
Renames visually-hidden to u-visually-hidden to match other naming conventions.
Consolidates utility classes/mixins.