Feature - New view: merged all stats from all libraries

[Vito0912]

Based on #3330

This PR introduces a new page titled "All Libraries Stats," which mirrors the existing "Library Stats" view but combines data from all libraries.

We might want to consider refactoring the design since this results in some duplicated code. While there are slight modifications, primarily in the computed section, much of the functionality remains the same.

Image:

[faush01]

cant this just be a toggle on the stats page to include all libraries?
having multiple pages for stats like this may be confusing.

[Vito0912]

cant this just be a toggle on the stats page to include all libraries?
having multiple pages for stats like this may be confusing.

I wouldn't recommend making this change. Although the design may appear similar, the "library stats" are actually located on the left-hand side of the current page, not in the settings, since they pertain specifically to this library. Having the label in the settings is, in my opinion, incorrect (and frustrating when navigating through pages and getting redirected), since it was recently moved.

Since "all libraries stats" are independent of the selected libraries, I suggest removing the incorrect button from the settings instead and having a button for all stats.