Feature/improve usability of create watchlist item dialog (#5661)

* Improve usability of create watchlist item dialog

* Update changelog

CHANGELOG.md

@@ -5,6 +5,12 @@ All notable changes to this project will be documented in this file.
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
+## Unreleased
+
+### Changed
+
+- Improved the usability of the _Cancel_ / _Close_ buttons in the create watchlist item dialog
+
 ## 2.205.0 - 2025-10-01
 
 ### Changed

apps/client/src/app/components/home-watchlist/create-watchlist-item-dialog/create-watchlist-item-dialog.html

@@ -12,7 +12,13 @@
     </mat-form-field>
   </div>
   <div class="d-flex justify-content-end" mat-dialog-actions>
-    <button i18n mat-button type="button" (click)="onCancel()">Cancel</button>
+    <button mat-button type="button" (click)="onCancel()">
+      @if (createWatchlistItemForm.dirty) {
+        <ng-container i18n>Cancel</ng-container>
+      } @else {
+        <ng-container i18n>Close</ng-container>
+      }
+    </button>
     <button
       color="primary"
       mat-flat-button