feat: favicons, logos, disabled button state, modal fixes

...ce/_patterns/00-atoms/03-buttons/00-basic-button.mustache

source/_patterns/00-atoms/03-buttons/01-icon-button.mustache

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

source/_patterns/01-molecules/21-modal/modal.mustache

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

source/css/molecules/chips.pcss

source/css/molecules/modal.pcss

source/images/favicons/apple-touch-icon-114x114.png

source/images/favicons/apple-touch-icon-120x120.png

source/images/favicons/apple-touch-icon-144x144.png

source/images/favicons/apple-touch-icon-152x152.png

source/images/favicons/apple-touch-icon-57x57.png

source/images/favicons/apple-touch-icon-60x60.png

source/images/favicons/apple-touch-icon-72x72.png

source/images/favicons/apple-touch-icon-76x76.png

source/images/favicons/favicon-128x128.png

source/images/favicons/favicon-16x16.png

source/images/favicons/favicon-196x196.png

source/images/favicons/favicon-32x32.png

source/images/favicons/favicon-96x96.png