wezterm: Unmap debug overlay mappings

Unmap the custom set Debug overlay mapping since I haven't had to use it
in absolute ages. Additionally we also unmap the default mapping for the
debug overlay - which frees up the key combination to be passed through
to TUIs.

terminal/.config/wezterm/maps.lua

@@ -2,7 +2,8 @@ local wezterm = require("wezterm")
 local act = wezterm.action
 
 local keys = {
-	{ key = "O", mods = "CTRL", action = act.ShowDebugOverlay },
+	{ key = "L", mods = "CTRL|SHIFT", action = "DisableDefaultAssignment" },
+
 	{ key = "[", mods = "CTRL", action = act.ScrollToPrompt(-1) },
 	{ key = "]", mods = "CTRL", action = act.ScrollToPrompt(1) },
 	{ -- vertical pane