Fixed redirection to project snippets

When deleting a Project snippet, we should redirect to the project
snippets, not hte project itself

app/assets/javascripts/snippets/components/snippet_header.vue

@@ -127,7 +127,7 @@ export default {
   },
   methods: {
     redirectToSnippets() {
-      window.location.pathname = this.snippet.project?.fullPath || 'dashboard/snippets';
+      window.location.pathname = `${this.snippet.project?.fullPath || 'dashboard'}/snippets`;
     },
     closeDeleteModal() {
       this.$refs.deleteModal.hide();

changelogs/unreleased/dmishunov-fix-project-snippet-redirect.yml

+---
+title: Fixed redirection to project snippets
+merge_request: 32530
+author:
+type: fixed

spec/frontend/snippets/components/snippet_header_spec.js

@@ -198,7 +198,7 @@ describe('Snippet header component', () => {
           },
         }).then(() => {
           expect(wrapper.vm.closeDeleteModal).toHaveBeenCalled();
-          expect(window.location.pathname).toBe(fullPath);
+          expect(window.location.pathname).toBe(`${fullPath}/snippets`);
         });
       });
     });