feat: chip-dropdown, simplified-navbar, thumbs, event-feed, cf2021 layouts

source/_patterns/00-atoms/02-icons/icons.mustache

.../_patterns/01-molecules/16-chips/chip-pagination.mustache

source/_patterns/01-molecules/17-thumbs/thumbs.mustache

...terns/01-molecules/18-chat/chat-post-with-labels.mustache

...erns/01-molecules/18-chat/chat-post-with-ratings.mustache

source/_patterns/01-molecules/18-chat/chat-post.mustache

source/_patterns/01-molecules/19-dropdown/dropdown.mustache

.../01-molecules/20-dropdown-button/dropdown-button.mustache

source/_patterns/02-organisms/01-navbar/navbar.mustache

...simplified-navbar/simplified-navbar-with-actions.mustache

...-simplified-navbar/simplified-navbar-with-avatar.mustache

...organisms/02-simplified-navbar/simplified-navbar.mustache

.../_patterns/02-organisms/08-event-feed/event-feed.mustache

...erns/02-organisms/09-chip-dropdown/chip-dropdown.mustache

source/_patterns/03-templates/cf2021/anonymous.mustache

source/_patterns/03-templates/cf2021/chairman.mustache

source/_patterns/03-templates/cf2021/user.mustache

source/css/atoms/avatar.pcss

source/css/atoms/icons.pcss

source/css/molecules/chips.pcss