Update vimrc to the current setup

.vimrc

@@ -1,52 +1,38 @@
-set nocompatible
+" Vim Plug
 
 call plug#begin('~/.vim/plugged')
-" Actual plugins
-Plug 'editorconfig/editorconfig-vim'
+
+"utility
+Plug 'junegunn/fzf', { 'do': { -> fzf#install() } }
+Plug 'junegunn/fzf.vim'
 Plug 'tpope/vim-fugitive'
+Plug 'preservim/nerdtree'
+
+"accessiblities
+Plug 'NLKNguyen/papercolor-theme'
 Plug 'itchyny/lightline.vim'
+
 call plug#end()
 
-" Important!!
-if has('termguicolors')
-  set termguicolors
-endif
-
-" For dark version.
+syntax on
 set background=dark
-
-" Set contrast.
-" This configuration option should be placed before `colorscheme everforest`.
-" Available values: 'hard', 'medium'(default), 'soft'
-let g:everforest_background = 'soft'
-
-" For better performance
-let g:everforest_better_performance = 1
-
-colorscheme everforest
-
 set laststatus=2
 set t_Co=256
 set encoding=utf-8
+
+let g:lightline = {
+      \ 'colorscheme': 'PaperColor',
+      \ }
+
+colorscheme PaperColor
+
+set shiftwidth=4
+set tabstop=4
+set expandtab
+set smarttab
 set autoindent
-set magic
+filetype on
 set number
-set scrolloff=3
-set sidescroll=3
 set ruler
-set cc=80
-set nowrap
-set ignorecase
-set smartcase
-set splitbelow
-set hidden
-set notimeout
-set incsearch
-set showmatch
-set hlsearch
 set mouse=a
 set noswapfile
-set nofoldenable
-set lazyredraw
-
-syntax enable