Updating shift UI changes (#4326)

* Updating shift UI changes

* Adding border to last account settings item

* Fixing modals

webapp/sass/components/_modal.scss

@@ -623,6 +623,12 @@
         flex-shrink: 1;
     }
 
+    .filter-button {
+        .btn {
+            height: 34px;
+        }
+    }
+
     .filter-controls {
         @include clearfix;
         flex-grow: 0;

webapp/sass/components/_popover.scss

@@ -128,6 +128,10 @@
             background: alpha-color($black, .2);
         }
 
+        .mention--align {
+            display: inline-block;
+        }
+
         .fa {
             @include opacity(.5);
             margin-right: 5px;