feat: get activity id based in url

It is now possible to get the activity ID based on a full URL and not
just the ID number.

src/main.py

@@ -62,9 +62,10 @@ def ask_file_location() -> str:
 
 
 def ask_activity_id() -> str:
-    return questionary.text(
+    activity_id = questionary.text(
         "Enter the Strava activity ID you want to export to TrainingPeaks:"
     ).ask()
+    return re.sub(r"\D", "", activity_id)
 
 
 def download_tcx_file(activity_id: str, sport: str) -> None:

tests/test_main.py

@@ -1,7 +1,10 @@
 import os
+#import sys
 import unittest
 from unittest.mock import patch
 
+# sys.path.append(os.path.abspath(''))
+
 from src.main import (
     download_tcx_file,
     read_xml_file,