Saas UI Theme 1.1

Changelog:\r\n\r\nv1.1 - 20 Nov 2023\r\nChanged Cover which is works also as embed in web/sites/social media.\r\nRemoved \"Blocks\" and \"Landing Pages\" (WIP).\r\n\r\nv1.1 - 10 Oct 2023\r\nAdded and updated components:\r\nButton\r\nCheckbox\r\nCircular Progress\r\nSpinner\r\nToast\r\nDrawer\r\nPopover\r\nClose Button\r\nKBD\r\nImage\r\nAvatar