fix(common-aliases)!: don't overshadow fd if installed (#9162)

BREAKING CHANGE: in `common-aliases`, the `fd` alias won't be defined if `fd` is installed (https://github.com/sharkdp/fd).

plugins/common-aliases/common-aliases.plugin.zsh

@@ -34,7 +34,7 @@ alias -g P="2>&1| pygmentize -l pytb"
 
 alias dud='du -d 1 -h'
 alias duf='du -sh *'
-alias fd='find . -type d -name'
+(( $+commands[fd] )) || alias fd='find . -type d -name'
 alias ff='find . -type f -name'
 
 alias h='history'