fix(carto) : url params should be kept after coming back from a structure's details

src/app/structure-list/structure-list.component.ts

@@ -25,6 +25,8 @@ export class StructureListComponent implements OnChanges, OnInit {
 
   public structure: Structure;
   public printMode = false;
+  public savedQuery = {};
+  private queryParamsCaptured = false;
 
   constructor(
     private route: ActivatedRoute,
@@ -92,12 +94,26 @@ export class StructureListComponent implements OnChanges, OnInit {
   }
 
   public showDetails(structure: Structure): void {
+    if (!this.queryParamsCaptured) {
+      if (Object.keys(this.route.snapshot.queryParams).length > 0) {
+        this.savedQuery = { ...this.route.snapshot.queryParams };
+      }
+      this.queryParamsCaptured = true;
+    }
     this.structure = structure;
     this.selectedMarkerId.emit(this.structure._id);
   }
 
   public closeDetails(): void {
+    if (this.savedQuery) {
+      this.router.navigate([], {
+        relativeTo: this.route,
+        queryParams: this.savedQuery,
+        queryParamsHandling: 'merge',
+      });
+    }
     this.selectedMarkerId.emit();
+    this.queryParamsCaptured = false;
   }
 
   public handleCardHover(structure: Structure): void {