remove zsh plugin fetch in favor of nix

.chezmoiexternal.toml

@@ -14,7 +14,3 @@ refreshPeriod = "168h"
 type = "git-repo"
 url = "https://github.com/Piraty/xxtools.git"
 refreshPeriod = "168h"
-
-[".local/share/zsh-history-substring-search"]
-type = "archive"
-url = "https://github.com/zsh-users/zsh-history-substring-search/archive/refs/tags/v1.1.0.tar.gz"

dot_config/zsh/dot_zshrc

@@ -117,6 +117,8 @@ for plugin in zsh-syntax-highlighting zsh-history-substring-search zsh-autosugge
     possible_locations=(
         # Standard location
         "/usr/share/zsh/plugins/$plugin/$plugin.zsh"
+        # Nix
+        "/nix/var/nix/profiles/default/share/$plugin/$plugin.zsh"
         # Direct in /usr/share
         "/usr/share/$plugin/$plugin.zsh"
         # Home directory locations
@@ -127,8 +129,6 @@ for plugin in zsh-syntax-highlighting zsh-history-substring-search zsh-autosugge
         "$HOME/.oh-my-zsh/custom/plugins/$plugin/$plugin.zsh"
         # Homebrew location (for macOS users)
         "/usr/local/share/$plugin/$plugin.zsh"
-        # Specific path for history-substring-search with version number
-        "$HOME/.local/share/zsh-history-substring-search/zsh-history-substring-search-*/zsh-history-substring-search.zsh"
     )
     # Try each location until we find one that exists
     for location in "${possible_locations[@]}"; do