FFWEB-3087: Add migration guide for upgrade WebComponents from v4 to v5

[Rayn93]

• Solves issue: -FFWEB-3087
• Description:
  • Add migration guide for upgrade WebComponents from v4 to v5
• Tested with Magento editions/versions:
  • 2.4.7
• Tested with PHP versions:
  • 8.2