Add mapping load acts (#30722)

Smug doesn't seem to have time to fix mapping state and I don't want to dump more time into it so.

Content.Client/Commands/MappingClientSideSetupCommand.cs

@@ -1,3 +1,4 @@
+using Content.Client.Actions;
 using Content.Client.Mapping;
 using Content.Client.Markers;
 using JetBrains.Annotations;
@@ -25,7 +26,7 @@ internal sealed class MappingClientSideSetupCommand : LocalizedCommands
             _entitySystemManager.GetEntitySystem<MarkerSystem>().MarkersVisible = true;
             _lightManager.Enabled = false;
             shell.ExecuteCommand("showsubfloorforever");
-            _stateManager.RequestStateChange<MappingState>();
+            _entitySystemManager.GetEntitySystem<ActionsSystem>().LoadActionAssignments("/mapping_actions.yml", false);
         }
     }
 }