SearchKit - Fix angular console error when totalCount is not given

Before: Error: [$compile:nonassign] Expression 'undefined' in attribute 'totalCount' used with directive 'crmSearchDisplayTable' is non-assignable!

After: Fixed, and totalCount still functions correctly for its indended purpose with SearchSegments.

ext/search_kit/ang/crmSearchDisplayTable/crmSearchDisplayTable.component.js

@@ -8,7 +8,7 @@
       display: '<',
       settings: '<',
       filters: '<',
-      totalCount: '='
+      totalCount: '<'
     },
     require: {
       afFieldset: '?^^afFieldset'