Fix two minor issues in test cases.

Author: joernu76

docs/conf.py

@@ -18,6 +18,7 @@
 import zipfile
 import shutil
 import importlib
+from pathlib import Path
 
 
 __version__ = importlib.metadata.version("open-mss")

tests/_test_msui/test_msui.py

@@ -89,7 +89,7 @@ def test_milestone_url(self):
         with urlopen(self.window.milestone_url) as f:
             text = f.read().decode("utf-8")
         expected_version = __version__
-        pattern = rf'value="is:closed milestone:{re.escape(expected_version)} "'
+        pattern = rf'value="is:closed milestone:{re.escape(expected_version)}"'
         assert re.search(pattern, text), f"Expected milestone format not found: {expected_version}"