[WEB-3310] Fixed Inbox Open Not Working for SPA App

[singhkunal2050]

Changes

WEB-3310 The DOM Node that we are storing duing clevertap Initialization becomes stale due to the framework re-rendering the node(ideally SPAs do not rerender the nodes that are not changed)
Hence the condition this.inboxSelector.contains(e.target) is failing, where this.inboxSelector becomes stale after route change. Refer here

To solve this

• we are checking for the current DOM node with web-inbox id along with using the already stored DOM node during initialization aka this.inboxSelector

Changes to Public Facing API if any

No Changes

How Has This Been Tested?

Tested the WebInbox on home page and changed route and checked again on different routes

Checklist

• Code compiles without errors
• Version Bump added to package.json & CHANGELOG.md
• All tests pass
• Build process is successful
• Documentation has been updated (if needed)