AppImage: allow loading apworlds from ~/Archipelago and copy scripts

[black-sliver]

What is this fixing or adding?

AppImage: allow loading apworlds from ~/Archipelago and copy scripts

also fixes some mypy and flake8 violations in worlds/__init__.py

How was this tested?

from worlds.AutoWorld import AutoWorldRegister; AutoWorldRegister.world_types.keys() on py3.9 and py3.11
and [Generate Template Settings] from the AppImage

[Berserker66]

code looks fine, haven't tested yet.

[black-sliver]

In case nobody has time to test this until the next preview/RC comes out, please just merge as-is.

[remyjette]

Worked for me on my steamdeck!

test steps i did:
Checked out this branch, merged in main, built appimage
moved pokemon_emerald.apworld into ~/Archipelago/worlds
Ran the appimage with a.apemerald i had generated elsewhere as an argument Archipelago_0.4.3_linux-x86_64.AppImage path/to/patch.apemerald

It asked for my .gba emerald ROM and path to EmuHawk in a filebrowser window. Path to EmuHawk didn't really work, presumably because it has to run via proton and that opener doesn't know that. Whatever, ran EmuHawk myself, opened the patched ROM, found the lua script in ~/Archipelago/data/lua/connection_bizhawk_generic.lua opened that up, worked great.
Played until I successfully sent an item.

[black-sliver]

Thanks!