Crash when the favicon does not exists

[Pierre-Sassoulas]

Hello, thank you for creating this module, I'm going to try to make my import faster using it :)

I got the following error while monkey testing the server:

Exception happened during processing of request from ('127.0.0.1', 45132)
Traceback (most recent call last):
  File "/usr/lib/python3.8/socketserver.py", line 316, in _handle_request_noblock
    self.process_request(request, client_address)
  File "/usr/lib/python3.8/socketserver.py", line 347, in process_request
    self.finish_request(request, client_address)
  File "/usr/lib/python3.8/socketserver.py", line 360, in finish_request
    self.RequestHandlerClass(request, client_address, self)
  File "/usr/lib/python3.8/socketserver.py", line 747, in __init__
    self.handle()
  File "/usr/lib/python3.8/http/server.py", line 427, in handle
    self.handle_one_request()
  File "/usr/lib/python3.8/http/server.py", line 415, in handle_one_request
    method()
  File "/home/pierre/pylint/venv/lib/python3.8/site-packages/tuna/main.py", line 63, in do_GET
    with open(filepath, "rb") as fh:
FileNotFoundError: [Errno 2] No such file or directory: '/home/pierre/pylint/venv/lib/python3.8/site-packages/tuna/web/favicon.ico'

[nschloe]

No idea why it's looking for favicon.ico. If anything, it should be favicon256.png.

[FraserParlane]

+1 for this issue. There's also no favicon256.png in that folder. Only index.html and a static directory.

[nschloe]

I double-checked and favicon256.png is shipped. No idea what should be wrong here.