misc: use xdg-base-dirs

Resolves #26

pyproject.toml

@@ -14,7 +14,7 @@ classifiers = [
     "Natural Language :: English",
     "Operating System :: POSIX :: Linux",
     "Programming Language :: Python :: 3 :: Only",
-    "Programming Language :: Python :: 3.9",
+    "Programming Language :: Python :: 3.10",
     "Topic :: Games/Entertainment :: Role-Playing",
     "Topic :: Games/Entertainment :: Simulation",
 ]
@@ -30,8 +30,8 @@ requires = ["poetry-core>=1.0.0"]
 build-backend = "poetry.core.masonry.api"
 
 [tool.poetry.dependencies]
-python = ">=3.9,<4.0"
-xdg = "^5.1.1"
+python = ">=3.10,<4.0"
+xdg-base-dirs = "^6.0.0"
 urwid = "^2.1.2"
 urwid-readline = "^0.13"
 windows-curses = {version = "^2.3.0", platform = "Windows"}
@@ -41,7 +41,6 @@ pre-commit = "^2.16.0"
 
 [tool.black]
 line-length = 79
-py36 = true
 
 [tool.isort]
 known_first_party = "pqcli"