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/elemente.py

@@ -18434,7 +18434,7 @@ def _install_listeners(bridge):
         "cmd_begin": _on_command_begin,
         "cmd_end":   _on_command_end,
     }
-    print("[ELEMENTE] Listener aktiv (Replace + Add + Delete + Select + Idle + Cmd)")
+    print("[ELEMENTE] Listener active (Replace + Add + Delete + Select + Idle + Cmd)")
     # Schnitt-Doppelklick-Handler global registrieren — idempotent via
     # sticky-Flag im schnitte-Modul, mehrfache Aufrufe bei Re-Loads
     # raeumen den alten Handler vorher weg.