Attempt of making the backend clip/ignore curves outside the xlim/ylim.

[theDigitalGuy]

I had the same issue as #14 . Maybe this is a usable fix?

configfile: pyproject.toml
testpaths: mpl_typst
collected 13 items                                                                                                                                                                           

mpl_typst/backend_test.py::TestTypstRenderer::test_draw_path PASSED                                                                                                                    [  7%]
mpl_typst/backend_test.py::TestTypstRenderer::test_draw_image_lenna[72] PASSED                                                                                                         [ 15%]
mpl_typst/backend_test.py::TestTypstRenderer::test_draw_image_lenna[100] PASSED                                                                                                        [ 23%]
mpl_typst/backend_test.py::TestTypstRenderer::test_draw_image_lenna[144] PASSED                                                                                                        [ 30%]
mpl_typst/backend_test.py::TestTypstRenderer::test_draw_image_spy[72] PASSED                                                                                                           [ 38%]
mpl_typst/backend_test.py::TestTypstRenderer::test_draw_image_spy[100] PASSED                                                                                                          [ 46%]
mpl_typst/backend_test.py::TestTypstRenderer::test_draw_image_spy[144] PASSED                                                                                                          [ 53%]
mpl_typst/backend_test.py::TestTypstFigureCanvas::test_print_typ[buffer] PASSED                                                                                                        [ 61%]
mpl_typst/backend_test.py::TestTypstFigureCanvas::test_print_typ[path] PASSED                                                                                                          [ 69%]
mpl_typst/backend_test.py::TestTypstFigureCanvas::test_print_typ[str] PASSED                                                                                                           [ 76%]
mpl_typst/config_test.py::TestConfig::test_from_dict PASSED                                                                                                                            [ 84%]
mpl_typst/config_test.py::TestConfig::test_from_toml PASSED                                                                                                                            [ 92%]
mpl_typst/typst_test.py::test_sanity PASSED                                                                                                                                            [100%]

=========================== 13 passed

[daskol]

LGTM Could you add a test case to cover this issue before we merge?