refactor: remove unused ts-ignore

ref #2856

visualization/app/codeCharta/ui/export3DMapButton/export3DMapButton.component.spec.ts

@@ -1,6 +1,6 @@
 import { TestBed } from "@angular/core/testing"
 import { Export3DMapButtonComponent } from "./export3DMapButton.component"
-import { fireEvent, render } from "@testing-library/angular"
+import { fireEvent, render, screen } from "@testing-library/angular"
 import { Export3DMapButtonModule } from "./export3DMapButton.module"
 import { FileDownloader } from "../../util/fileDownloader"
 import { ThreeSceneService } from "../codeMap/threeViewer/threeSceneService"
@@ -35,24 +35,23 @@ describe("Export3DMapButtonComponent", () => {
 	})
 
 	it("should start download on click", async function () {
-		const { container } = await render(Export3DMapButtonComponent, { excludeComponentDeclaration: true })
+		const { fixture } = await render(Export3DMapButtonComponent, { excludeComponentDeclaration: true })
 		// mock download and therefore only verify the Angular binding.
 		// A better approach would be, if the component would only fire an action
 		// and an https://ngrx.io/guide/effects would do the side effect and logic.
 		// Then we could test the logic in the effect without mocking a lot
 		// and the component wouldn't need to know anything about store values
-		// @ts-ignore
-		const mockedDownload = jest.spyOn(ng.probe(container).componentInstance, "downloadStlFile").mockImplementation(() => null)
+		const mockedDownload = jest.spyOn(fixture.componentInstance, "downloadStlFile").mockImplementation(() => null)
 
-		const downloadButton = container.querySelector(".export-3d-button")
+		const downloadButton = screen.getByRole("button")
 		expect(downloadButton).not.toBe(null)
 
 		fireEvent.click(downloadButton)
 		expect(mockedDownload).toHaveBeenCalledTimes(1)
 	})
 	it("should download STL file with the right file name", async function () {
-		const { container } = await render(Export3DMapButtonComponent, { excludeComponentDeclaration: true })
-		const downloadButton = container.querySelector(".export-3d-button")
+		await render(Export3DMapButtonComponent, { excludeComponentDeclaration: true })
+		const downloadButton = screen.getByRole("button")
 
 		const downloadData = jest.spyOn(FileDownloader, "downloadData").mockImplementation(() => null)
 		ThreeSceneService.mapMeshInstance = { getThreeMesh: jest.fn() } as unknown as CodeMapMesh