fix: resolve all TypeScript errors in web app

apps/web/src/components/domains/DomainList.test.tsx

@@ -60,7 +60,7 @@ describe("DomainList", () => {
     );
 
     const editButtons = screen.getAllByRole("button", { name: /edit/i });
-    editButtons[0].click();
+    editButtons[0]!.click();
     expect(onEdit).toHaveBeenCalledWith(mockDomains[0]);
   });
 
@@ -75,7 +75,7 @@ describe("DomainList", () => {
     );
 
     const deleteButtons = screen.getAllByRole("button", { name: /delete/i });
-    deleteButtons[0].click();
+    deleteButtons[0]!.click();
     expect(onDelete).toHaveBeenCalledWith(mockDomains[0]);
   });