feat: [IDCS-31] adding description equality check in contentfileentity

[venkata-ramana-d2l]

US : https://desire2learn.atlassian.net/browse/IDCS-31

Comparing changes in Description field to display cancel modal.

[github-actions[bot]]

PR Checklist:

Did you use a semver keyword in a commit message?

• [ ] Yes I used one in at least one of my commits
• [ ] No but I will use a semver keyword in the commit message when I merge and squash

Did you paste the Rally US URL in the description?

• [ ] Yes
• [ ] No as there's no corresponding Rally US

[d2l-github-release-tokens[bot]]

:tada: This PR is included in version 2.126.0 :tada:

The release is available on:

• GitHub release
• npm package (@latest dist-tag)

Your semantic-release bot :package::rocket: