Import: Identify folders with same name as Markdown file, to avoid duplicately named nodes

[maphew]

Enhancement: I'll add this or something like it into trilium-py (see #54)

def find_folders_matching_md_files(folder_path: Path) -> list:
    """Identify folders with same name as Markdown file, to avoid duplicately named nodes.
    
    Avoids situation where this input:
        source_dir/
            Foobaz.md
            Foobaz/hero-image.jpg
            Foobaz/another-pic.jpg
    
    Would create in Trilium:
        destination_note/
            Foobaz
                hero-image.jpg
                another-pic.jpg
            Foobaz
                (empty)

    Note: any content in the sub-folder that is not linked to from the .md will be left behind.

    Args:
        folder_path: Path to the folder containing Markdown files
        
    Returns:
        list: List of folder names that match Markdown file names
    """