tdf#95408 -"Toggle" in Writer Navigator to be more explicit in what it toggles

Bug resolved. Removed toggle button from non-master documents.
Toggle button working for master documents only.
Changed toggle button tooltip to "Toggle Master View"

Change-Id: I7b77bae812ac208b0b93fff9e114b063d2ae2520
Reviewed-on: https://gerrit.libreoffice.org/21913Reviewed-by: Samuel Mehrbrodt <Samuel.Mehrbrodt@cib.de>
Tested-by: Samuel Mehrbrodt <Samuel.Mehrbrodt@cib.de>

sw/source/uibase/utlui/navipi.cxx

@@ -705,6 +705,9 @@ SwNavigationPI::SwNavigationPI( SfxBindings* _pBindings,
     m_aContentToolBox->InsertSeparator(4);
     m_aContentToolBox->SetHelpId(FN_PAGENUMBER, HID_NAVI_TBX16);
     m_aContentToolBox->ShowItem( FN_PAGENUMBER );
+    if(!IsGlobalDoc()){
+        m_aContentToolBox->HideItem( FN_GLOBAL_SWITCH );
+    }
 
     for( sal_uInt16 i = 0; i <= static_cast<sal_uInt16>(RegionMode::EMBEDDED); i++  )
     {

sw/source/uibase/utlui/navipi.src

@@ -82,7 +82,7 @@ Window DLG_NAVIGATION_PI
             {
                 Identifier = FN_GLOBAL_SWITCH ;
                 HelpID = HID_NAVI_TBX17 ;
-                Text [ en-US ] = "Toggle" ;
+                Text [ en-US ] = "Toggle Master View" ;
             };
             ToolBoxItem
             {
@@ -215,7 +215,7 @@ Window DLG_NAVIGATION_PI
             {
                 Identifier = FN_GLOBAL_SWITCH ;
                 HelpID = HID_NAVI_TBX17 ;
-                Text [ en-US ] = "Toggle" ;
+                Text [ en-US ] = "Toggle Master View" ;
             };
             ToolBoxItem
             {