LPS-36141 Changes ImageGallery zindex to avoid positioning modal mask on top
LPS-35943 Adds layout descriptions and displays only first line
LPS-35984 Hides the empty_layout add option if portlet type is not available
LPS-36445 Focus on the first focusable item in add panel
LPS-35941 Creates new empty layout list selector
LPS-35943 - Source formatting
LPS-35943 - Source formatting
LPS-35943 SF