[ZSH][NVIM] Treat sudo from ising and fi545621 as personal

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

nvim/init.vim

@@ -1,7 +1,7 @@
 set nocompatible
 filetype off
 
-if ((!filereadable(stdpath('config') . "/.shared_config")) || (exists('$SUDO_USER') && $SUDO_USER == 'fabian'))
+if ((!filereadable(stdpath('config') . "/.shared_config")) || (index(['fabian', 'ising', 'fi545621'], $SUDO_USER) >= 0))
     let shared_config = 0
 else
     let shared_config = 1