this is better

.vimrc

@@ -18,22 +18,18 @@ inoremap ii <Esc><Right>
 
 imap <C-@> <C-n>
 
-inoremap ( ()<Left>
-inoremap { {}<Left>
-inoremap [ []<Left>
-inoremap " ""<Left>
-inoremap ' ''<Left>
-
 nnoremap qw :w<CR>
 
 set number
 
 call plug#begin()
     " coding
+    Plug 'jiangmiao/auto-pairs'
     Plug 'lervag/vimtex'
     Plug 'neoclide/coc.nvim'
     " ui
     Plug 'scrooloose/nerdtree'
+    Plug 'ryanoasis/vim-devicons'
     Plug 'itchyny/lightline.vim'
 call plug#end()
 
@@ -47,3 +43,6 @@ set noshowmode
 
 colors peachpuff
 
+highlight Pmenu ctermbg=black guibg=black
+highlight Pmenu ctermfg=white guifg=white
+

scripts/vim-setup.sh

@@ -13,4 +13,4 @@ cp ../.vimrc ~/.vimrc
 # source copied vimrc
 vim -c source ~/.vimrc -c qa!
 # install plugins
-vim -c PlugInstall vimtex -c coc.nvim -c PlugInstall lightline.vim -c PlugInstall nerdtree -c qa!
+vim -c PlugInstall -c qa!