fix: use form URL for progress requests

tests/test_dashboard_template.py

@@ -0,0 +1,15 @@
+from pathlib import Path
+
+
+def test_form_action_field_cannot_shadow_request_target():
+    template = (
+        Path(__file__).parents[1]
+        / "netbox_export"
+        / "templates"
+        / "netbox_export"
+        / "dashboard.html"
+    ).read_text(encoding="utf-8")
+
+    assert "form.getAttribute('action')" in template
+    assert "exportForm.action" not in template
+    assert "importForm.action" not in template