Add support for manual/custom sorting

Need some support for manual sorting, for when the sorting algo doesn’t do what I want (not that it’s doing anything wrong, I just want something different).

Example: I’m taking notes for a class, and I’m labeling my notes “Chapter.Subheading” (ex: 6.1), but when I get to 6.10, for example, the sorting comes out as follows:

Would love to have the ability to set a sort order through drag and drop, or have method for sorting with a regex (or other suitable method).

Also, thanks for the great app. Love it.

Can Joplin mobile apps manually drag and drop items in notebook, note and todo lists like how it is done on Workflowy app ?