feat(procs): add completions for procs

plugins/procs/README.md

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+# procs
+
+This plugin provides completion for [procs](https://github.com/dalance/procs).
+
+To use it, add `procs` to the plugins array in your zshrc file.
+
+```
+plugins=(... procs)
+```

plugins/procs/procs.plugin.zsh

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+if (( ! $+commands[procs] )); then
+  return
+fi
+
+# If the completion file doesn't exist yet, we need to autoload it and
+# bind it to `minikube`. Otherwise, compinit will have already done that.
+if [[ ! -f "$ZSH_CACHE_DIR/completions/_procs" ]]; then
+  typeset -g -A _comps
+  autoload -Uz _procs
+  _comps[procs]=_procs
+fi
+
+procs --gen-completion-out zsh >| "$ZSH_CACHE_DIR/completions/_procs" &|