Improvements to the Rollback Diff view

[nwmac]

• Add in ability to switch between the side-by-side and inline diff
• Collapse (or hide) the fields that are non-standard - check the Ember UI for the list of these

[ronhorton]

Reopening 2.6-head Commit ID 20d20a3

1. created deployment - nginx:1.21.3
2. edit config on new deployment - change to nginx:lastest
3. Show diff good - extraneous information not shown (such as kind:)
4. Click Rollback

Expected: deployment rolls back to original value

Actual: error that the deployment can not be found (reproducible 100%)

[nwmac]

Caused by same issue as #4664

PR in review

[ronhorton]

Pass Verified fixed in 2.6-head Commit ID f2a4147

1. created deployment with nginx 1.21.3
2. edit config on deployment to nginx:latest
3. rollback to previous deployment (1.21.3)
4. show diff
5. rollback

rollback to previous version functions as expected

[jtravee]

Confirmed with @catherineluse and @gaktive to add release note label.