MAINT Add pytest.mark.xfail_browsers and use it to reduce boilerplate. Use a decorator to indicate which browsers we want to xfail test. This works for `run_in_pyodide` as well as normal tests.
[rc_options]
backend=module://matplotlib.backends.wasm_backend

[libs]
system_freetype = true

[rc_options]
backend=module://matplotlib.backends.wasm_backend

[libs]
system_freetype = true
