Rename Action Plugins to Plugins in Preferences

The additional word doesn't add any clarity

common/eda_base_frame.cpp

@@ -1193,7 +1193,7 @@ void EDA_BASE_FRAME::ShowPreferences( wxString aStartPage, wxString aStartParent
             book->AddLazySubPage( LAZY_CTOR( PANEL_PCB_ORIGINS_AXES ), _( "Origins & Axes" ) );
             book->AddLazySubPage( LAZY_CTOR( PANEL_PCB_EDIT_OPTIONS ), _( "Editing Options" ) );
             book->AddLazySubPage( LAZY_CTOR( PANEL_PCB_COLORS ), _( "Colors" ) );
-            book->AddLazySubPage( LAZY_CTOR( PANEL_PCB_ACTION_PLUGINS ), _( "Action Plugins" ) );
+            book->AddLazySubPage( LAZY_CTOR( PANEL_PCB_ACTION_PLUGINS ), _( "Plugins" ) );
 
             if( GetFrameType() == FRAME_PCB_DISPLAY3D )
                 expand.push_back( (int) book->GetPageCount() );