feat(vim): use tokyonight theme

.vimrc

@@ -103,6 +103,7 @@ Plugin 'wuelnerdotexe/vim-astro'
 " Plugin 'ryanoasis/vim-devicons'
 Plugin 'morhetz/gruvbox'
 Plugin 'Rigellute/shades-of-purple.vim'
+Plugin 'ghifarit53/tokyonight-vim'
 Plugin 'NLKNguyen/papercolor-theme'
 
 " All of your Plugins must be added before the following line
@@ -150,7 +151,7 @@ if (has('termguicolors'))
  let &t_8f = "\<Esc>[38;2;%lu;%lu;%lum"
  let &t_8b = "\<Esc>[48;2;%lu;%lu;%lum"
  set termguicolors
- colorscheme shades_of_purple
+ colorscheme tokyonight
 else
  colorscheme gruvbox
  set bg=dark