Merge branch 'master' into dpo/some-css-fixes

src/images/logo.png

src/images/logo.webp

src/index.pug

src/page-messages.pug

src/scripts/login-element-visibility.js

src/scripts/navigate-event.js

src/scripts/register-sw.js

src/scripts/unreads-menu.js

src/scripts/widget-extension.js

src/styles/base/header.scss

src/styles/base/main.scss

src/styles/layout/user/_index.scss

src/styles/layout/user/messages.scss

src/styles/layout/user/user-profile.scss

src/sw.js