Document icon should show when viewing Experience builder pages

Problem/Motivation

The navigation top bar hardcodes the database icon, there is no way to alter it or customize it. Opened 🐛 Icon in navigation top bar cannot be customized Active for that in core navigation module.

Steps to reproduce

Proposed resolution

Make it use the document icon when core supports it.

Remaining tasks

User interface changes

When viewing XB pages, the document icon will show in the core navigation top bar.