Indent settings in neovim.

config/nvim/lua/config/options.lua

@@ -1,5 +1,6 @@
 -- Default options that are always set: https://github.com/LazyVim/LazyVim/blob/main/lua/lazyvim/config/options.lua
 local o = vim.o
+o.expandtab = true
 o.gdefault = true
 o.hlsearch = false
 o.inccommand = "split"
@@ -12,5 +13,8 @@ o.writebackup = false
 o.clipboard = ""
 o.foldcolumn = "0"
 o.mouse = ""
-o.whichwrap = ""
+o.shiftwidth = 4
+o.softtabstop = 4
 o.statuscolumn = ""
+o.tabstop = 4
+o.whichwrap = ""