bump powerlevel10k from b9a2d84 to 47b0187 (#843)

Bumps [custom/themes/powerlevel10k](https://github.com/romkatv/powerlevel10k) from `b9a2d84` to `47b0187`.
- [Release notes](https://github.com/romkatv/powerlevel10k/releases)
- [Commits](romkatv/powerlevel10k@b9a2d84...47b0187)

---
updated-dependencies:
- dependency-name: custom/themes/powerlevel10k
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <support@github.com>
Signed-off-by: Lucas Larson <LucasLarson@riseup.net>