Introduce new combobox and make it work with chip input

We introduced a new accessible combobox component. This component is based on headless ui and made compatible with our components and forms. Also we replaced the outdated `Autocomplete` component with the new combobox.

Co-authored-by: Konstantin Schaper <konstantin.schaper@cloudogu.com>

Reviewed-by: Florian Scholdei <florian.scholdei@cloudogu.com>

scm-ui/ui-styles/src/components/_main.scss

@@ -53,6 +53,12 @@
   }
 }
 
+
+
+.is-absolute {
+  position: absolute;
+}
+
 .has-box-shadow {
   box-shadow: $box-shadow;
 }
@@ -926,6 +932,10 @@ form .field:not(.is-grouped) {
   }
 }
 
+.is-overflow-hidden {
+  overflow: hidden;
+}
+
 .is-overflow-visible {
   overflow: visible;
 }