add some options from kickstart nvim

lua/options/default.lua

@@ -16,4 +16,10 @@ vim.opt.foldexpr = "nvim_treesitter#foldexpr()"
 vim.cmd([[ set nofoldenable]])
 vim.opt.foldcolumn = "2"
 
+-- Don't show the mode, since it's already in status line
+vim.opt.showmode = false
 
+-- Sync clipboard between OS and Neovim.
+--  Remove this option if you want your OS clipboard to remain independent.
+--  See `:help 'clipboard'`
+vim.opt.clipboard = "unnamedplus"