refactor: Install & test - CPython 3.7 (ubuntu), codecov (2).

Author: Ajnus

zulipterminal/core.py

@@ -645,7 +645,7 @@ def narrow_to_user(
     ) -> None:
         self._narrow_to(
             anchor=contextual_message_id,
-            dm_with=", ".join(recipient_emails),
+            pm_with=", ".join(recipient_emails),
         )
 
     def narrow_to_all_messages(
@@ -654,7 +654,7 @@ def narrow_to_all_messages(
         self._narrow_to(anchor=contextual_message_id)
 
     def narrow_to_all_dm(self, *, contextual_message_id: Optional[int] = None) -> None:
-        self._narrow_to(anchor=contextual_message_id, dms=True)
+        self._narrow_to(anchor=contextual_message_id, pms=True)
 
     def narrow_to_all_starred(self) -> None:
         # NOTE: Should we allow maintaining anchor focus here?