Make finder for field on bulk update dialog more robust.

Storage timeline events can refresh when not convenient, so pause for 1/2 a second.
On MSSQL calculated column for a date diff returns an integer, set field format accordingly.

src/org/labkey/test/components/ui/entities/EntityBulkUpdateDialog.java

@@ -262,7 +262,7 @@ public ToggleButton getToggle(String fieldKey)
 
         public FilteringReactSelect getSelect(String fieldKey)
         {
-            return FilteringReactSelect.finder(getDriver()).withNamedInput(fieldKey).findWhenNeeded(this);
+            return FilteringReactSelect.finder(getDriver()).withNamedInput(fieldKey).refindWhenNeeded(this);
         }
 
         public Input textInput(String fieldKey)