18.2.4

What's Changed

• refactor(tabs): Match design to the latest Web Components repo changes by @desig9stein in #15030
• fix(query-builder): delete empty groups - 18.2.x by @igdmdimitrov in #15013
• fix(datepicker): fix header title templating by @didimmova in #15045
• feat(themes): add theme property to components by @didimmova in #15061
• fix(date-range): projected input focus restore on consecutive close by @damyanpetev in #14951
• refactor(list): item gaps and margins by @SisIvanova in #15066
• fix(avatar): src is not encoded as URI by @simeonoff in #15069
• fix(checkbox): tickmark not rendered correctly in indigo theme by @simeonoff in #15067
• fix(themes): add missing igx-icon-button deps by @simeonoff in #15077

Full Changelog: 18.2.3...18.2.4