feat: add reusable chips, use them on cf2021 and distinguish archived posts too

...e/_patterns/00-atoms/03-buttons/02-button-colors.mustache

source/_patterns/01-molecules/16-chips/chip-colors.mustache

source/_patterns/01-molecules/16-chips/chip-select.mustache

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

source/_patterns/03-templates/cf-tool.mustache

source/css/molecules/chips.pcss

source/css/style.pcss

tailwind.config.js