fix(console): correct query parsing for parentheses and AND/OR logic for filter logs

Author: ankita-gupta21

gravitee-apim-console-webui/src/components/logs/search-and-select/search-and-select.html

@@ -34,7 +34,7 @@
     />
   </md-select-header>
 
-  <md-option ng-if="$ctrl.options.length === 0 && !$ctrl.searchTerm" disabled>No options available</md-option>
+  <md-option ng-if="$ctrl.api === null" disabled>Loading...</md-option>
 
   <md-option ng-value="item.id" ng-repeat="item in $ctrl.options track by item.id">{{ item.name }}</md-option>