Merge branch '4586-fix-shard-storage-null-check' into 'master'

Fix shard storage config status null check

Closes #4586

See merge request gitlab-org/gitlab-ee!4054

ee/app/assets/javascripts/geo_nodes/components/geo_node_details.vue

@@ -139,7 +139,7 @@
         return this.nodeDetails.healthy ? this.nodeDetails.health : this.nodeDetails.healthStatus;
       },
       storageShardsStatus() {
-        if (this.nodeDetails.storageShardsMatch === null) {
+        if (this.nodeDetails.storageShardsMatch == null) {
           return __('Unknown');
         }
         return this.nodeDetails.storageShardsMatch ? __('OK') : s__('GeoNodes|Does not match the primary storage configuration');