905903: updated the samples for Customize existing toolbar in both Standalone and Server-Backed#66

rparthi-1687 merged 1 commit intomasterSyncfusionExamples/mvc-pdf-viewer-examples:masterfrom

EJ2-905903-customizeBuiltinSyncfusionExamples/mvc-pdf-viewer-examples:EJ2-905903-customizeBuiltinCopy head branch name to clipboard