Lists dropdown drops up

app/assets/javascripts/boards/components/modal/lists_dropdown.js.es6

@@ -28,7 +28,7 @@
           {{ selected.title }}
           <i class="fa fa-chevron-down"></i>
         </button>
-        <div class="dropdown-menu dropdown-menu-selectable">
+        <div class="dropdown-menu dropdown-menu-selectable dropdown-menu-drop-up">
           <ul>
             <li
               v-for="list in state.lists"

app/assets/stylesheets/framework/dropdowns.scss

@@ -227,6 +227,11 @@
   }
 }
 
+.dropdown-menu-drop-up {
+  top: auto;
+  bottom: 100%;
+}
+
 .dropdown-menu-large {
   width: 340px;
 }