New Window: Maintain Sidebars (e.g. File Explorer, Search, Outline, etc.)

Use case or problem

Many of Obsidian’s main features & functions are facilitated by the sidebars. By these sidebars not being present in “new windows” I often find that my ability to work in my vault is limited when using multiple windows

Proposed solution

New windows look & function identical to the current “main window”.

Current workaround (optional)

Related feature requests (optional)