Feature/add no results message to assistant (#5166)

* Add no results message

* Update changelog

CHANGELOG.md

@@ -9,6 +9,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ### Added
 
+- Added a message to the assistant if no results have been found
 - Added the category title to the settings dialog to customize the rule thresholds of the _X-ray_ page (experimental)
 
 ### Changed

libs/ui/src/lib/assistant/assistant.html

@@ -38,7 +38,19 @@
     </div>
     @if (searchFormControl.value) {
       <div class="overflow-auto py-2 result-container">
-        @if (searchResults?.quickLinks?.length !== 0 || isLoading.quickLinks) {
+        @if (
+          !isLoading.assetProfiles &&
+          !isLoading.holdings &&
+          !isLoading.quickLinks &&
+          searchResults.assetProfiles?.length === 0 &&
+          searchResults.holdings?.length === 0 &&
+          searchResults.quickLinks?.length === 0
+        ) {
+          <div class="px-3 py-1 text-muted" i18n>No results found...</div>
+        } @else {
+          @if (
+            isLoading.quickLinks || searchResults?.quickLinks?.length !== 0
+          ) {
             <div class="mb-2">
               <div class="font-weight-bold px-3 text-muted title" i18n>
                 Quick Links
@@ -64,7 +76,7 @@
               }
             </div>
           }
-        @if (searchResults?.holdings?.length !== 0 || isLoading.holdings) {
+          @if (isLoading.holdings || searchResults?.holdings?.length !== 0) {
             <div>
               <div class="font-weight-bold px-3 text-muted title" i18n>
                 Holdings
@@ -92,8 +104,8 @@
           }
           @if (
             hasPermissionToAccessAdminControl &&
-          (searchResults?.assetProfiles?.length !== 0 ||
-            isLoading.assetProfiles)
+            (isLoading.assetProfiles ||
+              searchResults?.assetProfiles?.length !== 0)
           ) {
             <div class="mt-2">
               <div class="font-weight-bold px-3 text-muted title" i18n>
@@ -120,6 +132,7 @@
               }
             </div>
           }
+        }
       </div>
     }
   </div>