options: set shiftwidth and softtabstop

Co-Authored-by: iGor milhit <igor@milhit.ch>

init.lua

@@ -231,6 +231,9 @@ vim.o.mouse = 'a'
 --  See `:help 'clipboard'`
 vim.o.clipboard = 'unnamedplus'
 
+-- Indent
+vim.o.shiftwidth = 4
+vim.o.softtabstop = 4
 --   Enable break indent
 vim.o.breakindent = true