Popover: focus management for dialog role#34413

dmlvr wants to merge 9 commits into

DevExpress:feature/26_2_popover_support_content_readingDevExpress/DevExtreme:feature/26_2_popover_support_content_readingfrom

dmlvr:dmlvr-feature/26_2_popover_support_content_readingdmlvr/DevExtreme:dmlvr-feature/26_2_popover_support_content_readingCopy head branch name to clipboard