TECH-2081 bootstrap 4 migration: QA - fixed filter popover issue where placement strings with multiple options in it are no longer supported (undoing most of 2b0c9d357c64dbbe8c82afc1215e2b8f9aaace05 and simply returning 'left' instead of 'left auto' which is not supported by BS4; also added support for being clipped on left edge of viewport
TECH-2081 bootstrap 4 migration: QA - fixed filter popover issue where placement strings with multiple options in it are no longer supported (undoing most of 2b0c9d357c64dbbe8c82afc1215e2b8f9aaace05 and simply returning 'left' instead of 'left auto' which is not supported by BS4; also added support for being clipped on left edge of viewport

Invoca/backdraft,Invoca/backdraft