Pyodide fatal error occurs in Pyxel on WASM
When Pyxel is running on Web, Pyodide reports a fatal error.

As far as I have investigated:
- SDL2 on Emscripten throw 'unwind' exception when emscripten_set_main_loop is called. It's intentional. The purpose of it is to stop current code and continue infinite loop.
- Pyodide catch every exception and report it as 'fatal error', and then throw it again.
- As the result of that, Pyodide reports a fatal error when SDL2 started.

I will continue to investigate, but please let me know if there is a good solution.
One idea is to stop print fatal_error from Pyodide when the exception name is 'unwind' .