Translate Python log messages + fix rhinopanel import in PROJECTS

- startup.py: all user-visible messages translated to English
- panel_base.py: icon/rendering log messages translated
- toolbar.py: display mode check messages translated
- Global: Panel registered/opened/listener-active across all modules
- Fix: elemente.py and other files with stale 'import rhinopanel'
  were missing from PROJECTS sync — now properly copied

rhino/styles.py

@@ -2108,7 +2108,7 @@ def _install_selection_listener(bridge):
     Rhino.RhinoDoc.AddRhinoObject        += on_add
     Rhino.RhinoDoc.ModifyObjectAttributes += on_modify_attrs
     sc.sticky[flag] = True
-    print("[GESTALTUNG] Listener aktiv (Selection + Hatch-Live-Update + Ebene-Auto-Fill + Layer-Sync)")
+    print("[GESTALTUNG] Listener active (Selection + Hatch-Live-Update + Ebene-Auto-Fill + Layer-Sync)")
 
 
 def _bridge_factory():