26fd29a83b
These changes support an upcoming opt-out telemetry experiment that requires descriptions for certain items in the aboutwelcome MultiSelect template. Margins, padding, font size, and other [[ https://searchfox.org/mozilla-central/source/browser/components/aboutwelcome/content-src/components/MSLocalized.jsx#6-18 | configurable styles ]] can be adjusted for the title, subtitle, labels, and description text to best fit a given message. **LTR** {F7498988} **RTL** {F7498984} **RDM** {F7499309} **Full split with wrapping label (might occur in some languages)** {F7499811} Differential Revision: https://phabricator.services.mozilla.com/D218342