FLUT-965289 - [Feature] Updated the barcode ug content#1270

Hariram-SF4428 wants to merge 2 commits intosyncfusion-content:developmentsyncfusion-content/flutter-docs:developmentfrom

Hariram-SF4428:FLUT-965289-UG-docs-for-barcodeHariram-SF4428/flutter-docs:FLUT-965289-UG-docs-for-barcodeCopy head branch name to clipboard