Re-add code to refresh plugins at each frame load

Should now be safe

Fixes https://gitlab.com/kicad/code/kicad/-/issues/9781

pcbnew/pcb_edit_frame.cpp

@@ -316,6 +316,9 @@ PCB_EDIT_FRAME::PCB_EDIT_FRAME( KIWAY* aKiway, wxWindow* aParent ) :
     PythonSyncEnvironmentVariables();
     PythonSyncProjectName();
 
+    // Sync action plugins in case they changed since the last time the frame opened
+    GetToolManager()->RunAction( PCB_ACTIONS::pluginsReload, true );
+
     GetCanvas()->SwitchBackend( m_canvasType );
     ActivateGalCanvas();