Add exec to lvim binary (#1203)

utils/bin/lvim

@@ -1,3 +1,3 @@
 #!/bin/sh
 
-nvim -u ~/.local/share/lunarvim/lvim/init.lua --cmd "set runtimepath+=~/.local/share/lunarvim/lvim" "$@"
+exec nvim -u ~/.local/share/lunarvim/lvim/init.lua --cmd "set runtimepath+=~/.local/share/lunarvim/lvim" "$@"