[fix] Restore support for Gantt representation images

Signed-off-by: Stéphane Bégaudeau <[email protected]>

packages/gantt/backend/sirius-components-collaborative-gantt/src/main/java/org/eclipse/sirius/components/collaborative/gantt/service/GanttImagePathService.java

@@ -0,0 +1,31 @@
+/*******************************************************************************
+ * Copyright (c) 2024 Obeo.
+ * This program and the accompanying materials
+ * are made available under the terms of the Eclipse Public License v2.0
+ * which accompanies this distribution, and is available at
+ * https://www.eclipse.org/legal/epl-2.0/
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ *
+ * Contributors:
+ *     Obeo - initial API and implementation
+ *******************************************************************************/
+package org.eclipse.sirius.components.collaborative.gantt.service;
+
+import java.util.List;
+
+import org.eclipse.sirius.components.core.api.IImagePathService;
+import org.springframework.stereotype.Service;
+
+/**
+ * Register the gantt images folder.
+ *
+ * @author sbegaudeau
+ */
+@Service
+public class GanttImagePathService implements IImagePathService {
+    @Override
+    public List<String> getPaths() {
+        return List.of("/gantt-images/");
+    }
+}

packages/gantt/backend/sirius-components-collaborative-gantt/src/main/java/org/eclipse/sirius/components/collaborative/gantt/service/GanttImageProvider.java

@@ -29,7 +29,7 @@ public class GanttImageProvider implements IRepresentationImageProvider {
     @Override
     public Optional<String> getImageURL(String kind) {
         if (Gantt.KIND.equals(kind)) {
-            return Optional.of("/images/Gantt.svg");
+            return Optional.of("/gantt-images/gantt.svg");
         }
         return Optional.empty();
     }