change tab to 4 sapces

lvim/config.lua

@@ -12,6 +12,9 @@ an executable
 lvim.log.level = "warn"
 lvim.format_on_save = true
 lvim.colorscheme = "onedarker"
+vim.opt.tabstop = 4
+vim.opt.softtabstop = 4
+vim.opt.shiftwidth = 4
 
 -- keymappings [view all the defaults by pressing <leader>Lk]
 lvim.leader = "space"