rework personal completions

also support:
- fd/fdfind
- hyperfine

.config/zsh/completion/external.zsh

@@ -0,0 +1,9 @@
+#!/bin/zsh
+
+__z_comp__kubectl() { command kubectl completion zsh ; }
+__z_comp__podman() { command podman completion zsh ; }
+
+for i ( kubectl podman ) ; do
+    __z_comp_external $i "__z_comp__$i"
+done
+unset -fm '__z_comp__*'