feat(layout): new layout selector with 3D volume rendering (#3923)

platform/docs/docs/migration-guide.md

@@ -657,7 +657,6 @@ onModeEnter: ({ servicesManager, extensionManager, commandsManager }) => {
     'Pan',
     'Capture',
     'Layout',
-    'MPR',
     'Crosshairs',
     'MoreTools',
   ]);

platform/docs/docs/platform/extensions/modules/toolbar.md

@@ -184,7 +184,6 @@ function modeFactory({ modeConfiguration }) {
         'Pan',
         'Capture',
         'Layout',
-        'MPR',
         'Crosshairs',
         'MoreTools',
       ]);

platform/docs/docs/platform/services/data/ToolbarService.md

@@ -243,7 +243,6 @@ toolbarService.createButtonSection('primary', [
   'Pan',
   'Capture',
   'Layout',
-  'MPR',
   'Crosshairs',
   'MoreTools',
 ]);