test: normalize SigningMode spec newline

Ensure the spec ends with a trailing newline for consistent formatting.

Signed-off-by: Vitor Mattos <1079143+vitormattos@users.noreply.github.com>

Author: vitormattos

src/tests/views/Settings/SigningMode.spec.ts

@@ -117,4 +117,4 @@ describe('SigningMode.vue', () => {
 		expect(wrapper.vm.lastSavedParallelWorkers).toBe('6')
 		expect(wrapper.vm.saved).toBe(true)
 	})
-})
+})