style: fix lint findings from the review fixes

Signed-off-by: bircni <bircni@icloud.com>

internal/app/editor_test.go

@@ -333,7 +333,7 @@ func TestBodyEditorTypesInlineWithoutAnEditor(t *testing.T) {
 	require.Equal(t, []string{terminal.BodyTitle + " ## Steps"}, prompt.texts)
 	// The typed body is kept like an editor draft: reported when the command fails, removed when it succeeds.
 	requireDraft(t, draft.Path, true)
-	var failed error = errors.New("create failed")
+	failed := errors.New("create failed")
 	finishDraft(&draft, &failed)
 	require.ErrorContains(t, failed, "draft saved at "+draft.Path)
 	requireDraft(t, draft.Path, true)