Merge branch 'next-minor' into develop

Changelog.md

app/assets/stylesheets/bootstrap-variables.scss

app/assets/stylesheets/color-variables.scss

.../stylesheets/color_themes/_color_theme_override_dark.scss

...esheets/color_themes/_color_theme_override_origwhite.scss

app/assets/stylesheets/color_themes/dark/_style.scss

app/assets/stylesheets/color_themes/dark/desktop.scss

app/assets/stylesheets/color_themes/dark/mobile.scss

...ssets/stylesheets/color_themes/original_white/_style.scss

app/assets/stylesheets/contacts.scss

app/assets/stylesheets/conversations.scss

app/assets/stylesheets/forms.scss

app/assets/stylesheets/header.scss

app/assets/stylesheets/help.scss

app/assets/stylesheets/home.scss

app/assets/stylesheets/hovercard.scss

app/assets/stylesheets/icons.scss

app/assets/stylesheets/interactions.scss

app/assets/stylesheets/invitations.scss

app/assets/stylesheets/markdown-editor.scss