fix: set text color in sortable item (#99)

Author: xhyrom

src/app/components/tasks/task-module/task-module-sortable/task-module-sortable-item/task-module-sortable-item.component.scss

@@ -4,6 +4,7 @@
 :host {
   display: block;
   padding: $ksi-margin-small;
+  color: $ksi-gray-30;
 
   border: 1px solid $ksi-blue-200;
   background-color: $ksi-blue-220;