First try of type hints

I'm done w/ type hints test. Ready for merging.

apps/conky/pyproject.toml

@@ -13,3 +13,14 @@ dependencies = ["xaal.lib", "xaal.monitor"]
 
 [tool.setuptools.packages.find]
 include = ["xaal.conky"]
+
+[tool.ruff]
+line-length = 122
+
+[tool.ruff.format]
+quote-style = "preserve"
+
+[tool.black]
+line-length = 122
+skip-string-normalization = true
+