misc: drop typing as T, use builtin generics

Python 3.10 is the minimum, so annotations use `X | None`, `list[X]`
and friends, enforced by ruff's pyupgrade rules. The remaining typing
names are imported directly, with abstract types coming from
collections.abc. first() is now generic over the item and default.

pqcli/ui/curses/views/game_view/plot_window.py

@@ -1,4 +1,4 @@
-import typing as T
+from typing import Any
 
 from pqcli.lingo import act_name
 from pqcli.mechanic import Player
@@ -11,7 +11,7 @@ class PlotWindow(Focusable, ListBoxProgressBarWindow):
     cutoff = 100
 
     def __init__(
-        self, player: Player, parent: T.Any, h: int, w: int, y: int, x: int
+        self, player: Player, parent: Any, h: int, w: int, y: int, x: int
     ) -> None:
         super().__init__(
             parent, h, w, y, x, " Plot Development ", show_time=True