feat(libreoffice): add macOS *.pages support

pkg/modules/libreoffice/api/api.go

@@ -315,6 +315,7 @@ func (a *Api) Extensions() []string {
 		".xpm",
 		".odp",
 		".fodp",
+		".pages",
 		".potm",
 		".pot",
 		".pptx",

pkg/modules/libreoffice/api/api_test.go

@@ -450,7 +450,7 @@ func TestApi_Extensions(t *testing.T) {
 	extensions := a.Extensions()
 
 	actual := len(extensions)
-	expect := 79
+	expect := 80
 
 	if actual != expect {
 		t.Errorf("expected %d extensions, but got %d", expect, actual)