Fix filter_dataframe input

app.py

@@ -51,8 +51,8 @@ def filter_datasets_by_date(date_from, date_to):
     return dss
 
 
-def filter_dataframe(name):
-    dss = filter_datasets_by_date()
+def filter_dataframe(date_from, date_to):
+    dss = filter_datasets_by_date(date_from, date_to)
     return [[ds.id, ds.downloads] for ds in dss]