VScode: add environment for debugging

.vscode/launch.json

@@ -1,7 +1,4 @@
 {
-    // Use IntelliSense to learn about possible attributes.
-    // Hover to view descriptions of existing attributes.
-    // For more information, visit: https://go.microsoft.com/fwlink/?linkid=830387
     "version": "0.2.0",
     "configurations": [
         {
@@ -13,7 +10,10 @@
             "args": [
                 "/home/tkl/Nextcloud/Bicycle",
                 "${workspaceFolder}"
-            ]
+            ],
+            "env": {
+                "PYTHONPATH": "${workspaceFolder}"
+            }
         }
     ]
 }