Install ctop with Zinit when docker CLI tool is available

zsh/docker.zsh

@@ -6,14 +6,11 @@ alias d="docker"
 alias dc="docker-compose"
 alias co="docker-compose"
 
-if ! (( $+commands[ctop] )); then
-  ctop() {
-    docker run --rm -ti --name=ctop-$RANDOM \
-           --volume /var/run/docker.sock:/var/run/docker.sock:ro \
-           quay.io/vektorlab/ctop:latest
-  }
-fi
-
 docker_remove_exited () {
   docker rm "$(docker ps -f='status=exited' -q)"
 }
+
+if (( $+commands[docker] )); then
+  zinit ice from'gh-r' as'program' mv'ctop-* -> ctop'
+  zinit light bcicen/ctop
+fi