fix: ensure python.analysis.diagnosticMode is set to 'openFilesOnly'

Author: HugoMVale

.vscode/settings.json

@@ -8,6 +8,7 @@
     "python.testing.unittestEnabled": false,
     "python.testing.pytestEnabled": true,
     "python.languageServer": "Pylance",
+    "python.analysis.diagnosticMode": "openFilesOnly",
     "ty.disableLanguageServices": true,
     "[python]": {
         "editor.rulers": [