niv powerlevel10k: update a42e374e -> d71edb83

## Changelog for powerlevel10k:
Branch: master
Commits: [romkatv/powerlevel10k@a42e374e...d71edb83](romkatv/powerlevel10k@a42e374...d71edb8)

* [`c30068c1`](romkatv/powerlevel10k@c30068c) docs: Add instructions for setting MesloLGS NF font in Deepin Terminal
* [`d71edb83`](romkatv/powerlevel10k@d71edb8) docs: fix font instructions for deepin terminal and copy them over to font.md ([romkatv/powerlevel10k⁠#2752](https://togithub.com/romkatv/powerlevel10k/issues/2752))

nix/sources.json

@@ -113,10 +113,10 @@
  "homepage": "",
  "owner": "romkatv",
  "repo": "powerlevel10k",
- "rev": "a42e374e25226d2032a38b38fc544ec1d65b0d01",
- "sha256": "1vd0nm61j3h5hazd8zy26lq0h114rkch0hksngq5jd20nc6dic0z",
+ "rev": "d71edb83f9c7f045a0d528eeff3445ec3d518d71",
+ "sha256": "10k2kh96ww1v972rxrmzk00wycy8psh2cszs52xaxir84dnf3myl",
  "type": "tarball",
- "url": "https://github.com/romkatv/powerlevel10k/archive/a42e374e25226d2032a38b38fc544ec1d65b0d01.tar.gz",
+ "url": "https://github.com/romkatv/powerlevel10k/archive/d71edb83f9c7f045a0d528eeff3445ec3d518d71.tar.gz",
  "url_template": "https://github.com/<owner>/<repo>/archive/<rev>.tar.gz"
  },
  "rh": {