set guicursor option

config/nvim/lua/user/options.lua

@@ -30,6 +30,7 @@ opt.signcolumn = "yes"
 opt.fillchars:append({ eob = " " })
 opt.showtabline = 2
 opt.showcmd = false
+opt.guicursor = "a:block,i:ver25"
 
 -- if vim.fn.has("win32") == 1 then
 --   opt.shell = "powershell.exe"