add feedback link to static pages (#2853)
add feedback link to static pages (#2853)

- fixes #2806
chuckharmston/testpilot,mozilla/idea-town,lmorchard/idea-town,lmorchard/idea-town-server,meandavejustice/testpilot,mozilla/idea-town,mozilla/idea-town-server,lmorchard/testpilot,chuckharmston/testpilot,fzzzy/testpilot,meandavejustice/testpilot,fzzzy/testpilot,chuckharmston/testpilot,mozilla/idea-town-server,chuckharmston/testpilot,flodolo/testpilot,lmorchard/testpilot,lmorchard/idea-town,mozilla/idea-town-server,lmorchard/idea-town-server,fzzzy/testpilot,mozilla/idea-town,flodolo/testpilot,mozilla/idea-town,flodolo/testpilot,lmorchard/idea-town-server,lmorchard/idea-town,lmorchard/idea-town,flodolo/testpilot,lmorchard/testpilot,meandavejustice/testpilot,mozilla/idea-town-server,fzzzy/testpilot,meandavejustice/testpilot,lmorchard/testpilot,lmorchard/idea-town-server