ABPUI release 2020-1
MR for all the spec changes for ABP UI release 2020-1: https://gitlab.com/eyeo/adblockplus/abpui/adblockplusui/-/milestones/504
MR for all the spec changes for ABP UI release 2020-1: https://gitlab.com/eyeo/adblockplus/abpui/adblockplusui/-/milestones/504