[RAPPS] *.rc: IDC_DEFAULT_SETTINGS Optimize AUTORADIOBUTTONS, WS_GROUP (#7094)

- The stuff with the AUTORADIOBUTTONS is a small optimization to slightly reduce code-size and binary-size.
- Also add a missing WS_GROUP to IDC_DEFAULT_SETTINGS, which prevents leaving the group of the 3 bottom-most buttons to the left with the left-arrow-key.
- we need to add a return TRUE into WM_INITDIALOG section of SettingsDlgProc() to handle the default keyboard focus correctly towards the topmost AUTOCHECKBOX in this dlg. That part was contributed by @whindsaks , thank you very much for that!
- pl.PL: Add a missing ES_AUTOHSCROLL
- improve a few accelerators here and there

For the record: If no additional style is set then an AUTORADIOBUTTON gets by default BS_AUTORADIOBUTTON | WS_TABSTOP
see https://learn.microsoft.com/de-de/windows/win32/menurc/autoradiobutton-control

base/applications/rapps/settingsdlg.cpp

@@ -124,11 +124,9 @@ SettingsDlgProc(HWND hDlg, UINT Msg, WPARAM wParam, LPARAM lParam)
     switch (Msg)
     {
         case WM_INITDIALOG:
-        {
             NewSettingsInfo = SettingsInfo;
             InitSettingsControls(hDlg, &SettingsInfo);
-        }
-        break;
+            return TRUE;
 
         case WM_COMMAND:
         {