style: Fix trailing whitespace and comma consistency

Author: paul-gauthier

aider/commands.py

@@ -149,7 +149,7 @@ def cmd_chat_mode(self, args):
                 ),
                 (
                     "context",
-                    "Work with surrounding code context for more contextually-aware edits."
+                    "Work with surrounding code context for more contextually-aware edits.",
                 ),
             ]
         )
@@ -1129,7 +1129,7 @@ def completions_code(self):
 
     def completions_architect(self):
         raise CommandCompletionException()
-        
+
     def completions_context(self):
         raise CommandCompletionException()
 
@@ -1144,7 +1144,7 @@ def cmd_code(self, args):
     def cmd_architect(self, args):
         """Enter architect/editor mode using 2 different models. If no prompt provided, switches to architect/editor mode."""  # noqa
         return self._generic_chat_command(args, "architect")
-        
+
     def cmd_context(self, args):
         """Enter context mode to see surrounding code context. If no prompt provided, switches to context mode."""  # noqa
         return self._generic_chat_command(args, "context")