Revert "Remove zsh plugins"

This reverts commit 7fed3186b3e3100ac7fcd90202cee1d9f7624a2d.
Revert "Revert "Remove zsh plugins""

This reverts commit 14d19c23a64d6a7e95c74f4c6f3194661a3ab576.
Use oh-my-zsh custom/plugins dir
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