CSR-1551 set focus state to eliminate outline on button

click. Update margin on error to avoid pushing button partially off of page.

src/digital-components/date-picker/date-picker.vue

@@ -450,7 +450,7 @@ export default {
                     monthsAfterToLoadOffset (number),
                     hideSecondMonth (boolean),
                     preSelectedDate (string)
-                
+
                 data used:
                     todayDate (date object)
                     this.hideSomeDaysForInitialView (string)
@@ -946,6 +946,9 @@ export default {
         font-weight: 500;
         text-underline-offset: 4px;
         flex-grow: 0;
+        &:focus {
+            box-shadow: none;
+        }
     }
 
     .past {
@@ -1019,7 +1022,7 @@ export default {
 }
 
 .form-test-error {
-    margin: 0 auto 2rem auto;
+    margin: 0 auto;
     max-width: 414px;
     text-align: left;
 }