Create survey banner on about:tor for TB-Alpha
We're planning on deploying an iteration of the survey banner created in !34 (merged) on TB-Alpha for the upcoming Snowflake Client User Survey (ideally around Feb 23). It should be functionally identical to the banner being deployed on TB-Stable for the Tor Browser Usage Survey, save for the following differences:
Do you use Snowflake?
Snowflake is a pluggable transport available in Tor Browser. Help us improve it by completing this short survey about your browsing experience:
[Launch the Survey]
(don't worry if that 404s, it's currently unpublished)
Full mockups of both banners can be viewed here too: https://www.figma.com/file/DPWy3cLbmLy0M7OQYlqAgG/About-Tor?node-id=0%3A1