prompt: update powerlevel10k submodule to v1.1

==[ Changes since the last release ]==

- Complete documentation overhaul. Powerlevel10k documentation is no
  longer embarrassing (still no reference though; coming "soon").
- Worker pool and recursive globber have been rewritten for better
  performance and simpler code. Performance improvements (large
  speedup means an improvement in big-O and at least 2x in typical
  configurations):
  - +15% prompt speedup across the board.
  - Large prompt speedup for several rarely used prompt segments
    (disk_usage, ram, etc.).
  - Large prompt speedup for a few prompt segments on macOS
    (battery, swap, etc.).
  - Large prompt speedup when many prompt segments are active
    simultaneously.
  - Large prompt speedup when filesystem is slow.
- New prompt segments: nix_shell and timewarrior. Both enabled by
  default.
- Configuration wizard:
  - Many new options for Pure style (color scheme, number of lines,
    etc.)
  - Several new options for 8-color version of Pure style.
  - Better support for terminals with less than 256 colors.
  - Lean, Classic and Rainbow style configs now have disk_usage and
    swap prompt segments (disabled by default).
  - POWERLEVEL9K_DIR_TRUNCATE_BEFORE_MARKER now contains 'oc'.
- New parameters:
  - POWERLEVEL9K_LEGACY_ICON_SPACING=true makes spaces around icons
    appear just like in powerlevel9k.
  - When in a vcs repo, POWERLEVEL9K_DIR_TRUNCATE_BEFORE_MARKER=true
    removes directory prefix that precedes repo root.
  - P9K_KUBECONTEXT_USER can now be used in kubecontext format.
  - POWERLEVEL9K_GOENV_SOURCES -- the same as
    POWERLEVEL9K_RBENV_SOURCES but or go.
  - POWERLEVEL9K_TERRAFORM_CLASSES -- the same as
    POWERLEVEL9K_AWS_CLASSES but for terraform.
- Bug fixes:
  - Configuration wizard now correctly follows symlinks when modifying
    ~/.zshrc and ~/.p10k.zsh.
  - ram prompt segment now works on WSL.
  - Powerlevel10k now correctly works with zsh-you-should-use in
    hardcore mode.
  - POWERLEVEL9K_PUBLIC_IP_HOST now points to a host that actually
    works.
  - Instant prompt no longer prints nonsensical "entry=" in rare
    circumstances.
- Misc:
  - Config templates no longer work with
    POWERLEVEL9K_VISUAL_IDENTIFIER='' defined after them.
  - Powerlevel10k now detects when Antigen corrupts its source and
    emits an appropriate error message.
  - Command line parser now understands 'tabbed'.
  - Remove all references to romkatv/dotfiles-public. Fonts are now
    hosted in romkatv/powerlevel10k-media together with all images
    and animations.

==[ Build time dependencies ]==

- edb99aa7b8
- 75be63625a
- https://opensource.apple.com/tarballs/libiconv/libiconv-51.200.6.tar.gz

modules/prompt/external/powerlevel10k

@@ -1 +1 @@
-Subproject commit c21961b53c137253020aeffca2b132fdd6bcb116
+Subproject commit 9d9c50611da19044370ee759e593ccadbad32a6a