reducing `nu_scripts` git repo size by removing images and some obsolete file and rewriting history

Now the repo size seems huge to me:

> du | sort-by physical -r | first 4 | select path physical
╭─#─┬───────────────────────path────────────────────────┬─physical─╮
│ 0 │ /Users/user/git/nu_scripts_dev/.git               │ 297.5 MB │
│ 1 │ /Users/user/git/nu_scripts_dev/themes             │  58.6 MB │
│ 2 │ /Users/user/git/nu_scripts_dev/custom-completions │   5.5 MB │
│ 3 │ /Users/user/git/nu_scripts_dev/modules            │   1.1 MB │
╰─#─┴───────────────────────path────────────────────────┴─physical─╯

apparently because images are stored here.

Can we reduce the size of the repo by storing images using git-lfs?

I can do all the preparations and transfer the results to contributors with push rights.

Start by inspecting the .git directory and the themes, custom-completions, and modules paths, using the reported disk-usage command to locate large files. Determine which images and obsolete files are candidates for Git LFS or history rewriting. Done means the repository is smaller and the prepared results can be transferred to contributors with push rights.