irc/py-limnoria: Backport Web plugin bugfixes

Backport fixes for the Web plugin [1][2][3].

[1] https://github.com/ProgVal/Limnoria/pull/1371
[2] https://github.com/ProgVal/Limnoria/issues/1362
[3] https://github.com/ProgVal/Limnoria/issues/1359

Submitted by: DanDare (GitHub: Rodrigo-NH, via IRC)