v6.2.4

Fixes

Fixed issue where sometimes the Tooltip component could not find a location to place itself #575
Fixed issue where sometimes the popup would be invisible #560
Fixed issue where text highlight tools don't have an opacity slider #569
Fixed issue where border style name was wrong
Fixed issue where border style in the style popup wasn't visible in a landscape mode mobile device
Fixed documentation for instance.setTheme to accept a string as the argument