format path in backend when listing

Author: DenisaCG

jupyter_drives/manager.py

@@ -165,6 +165,9 @@ async def get_contents(self, drive_name, path):
         """
         if path == '/':
             path = ''
+        else: 
+            path = path.strip('/')
+
         try :
             data = []
             isDir = False