Fixes #10845

Findings

The FullScreenDialogFragments being used to communicate with the MySiteFragment to confirmation clicks. When a configuration change takes place, the fragment loses reference to the parent fragment.

Solution

To reattach the listeners on all fragments within the MySiteFragment that are of the type FullScreenDialogFragment

Testing

1. Click on "Customize your site" or "Grow your audience" section of the QuickStart
2. Rotate your device
3. Click on one of the items (eg. View Site)
4. Notice that the actions work similarly to how they did before the configuration change.

Reviewing

Only 1 reviewer is needed but anyone can review.

Submitter Checklist

• I have considered if this change warrants user-facing release notes and have added them to RELEASE-NOTES.txt if necessary.
• I have considered adding accessibility improvements for my changes.
• If it's feasible, I have added unit tests.