dev: add pytest settings

Author: kuboschek

.vscode/settings.json

@@ -1,3 +1,9 @@
 {
-    "python.formatting.provider": "black"
-}
+    "python.formatting.provider": "black",
+    "python.testing.pytestArgs": [
+        "."
+    ],
+    "python.testing.unittestEnabled": false,
+    "python.testing.pytestEnabled": true,
+
+}