plugins: set edge light as color scheme

- Installs the edge and onehalf color schemes plugins.
- Removes the tokyonight color schemes.
- Sets edge light as main color scheme and as airline theme.
- Sets a background color for the selected item in the COC suggestion
  menu.

Co-Authored-by: iGor milhit <igor@milhit.ch>

init.vim

@@ -11,6 +11,8 @@ Plug 'junegunn/limelight.vim', { 'on': 'Goyo' }                             " Di
 Plug 'lervag/vimtex'                                                        " Filetype and syntax plugin for LaTeX files
 Plug 'dpelle/vim-Grammalecte'                                               " French ortho/grammar spelling
 Plug 'arcticicestudio/nord-vim'                                             " Nord color scheme
+Plug 'sonph/onehalf', { 'rtp': 'vim' }                                      " OneHalf color scheme
+Plug 'sainnhe/edge'                                                         " Edge color schemes
 Plug 'vim-airline/vim-airline'                                              " Fancy bottom line in vim/neovim
 Plug 'vim-airline/vim-airline-themes'                                       " Themes for vim-airlines
 Plug 'jiangmiao/auto-pairs'                                                 " Pairs autocomplete
@@ -126,7 +128,7 @@ set clipboard+=unnamedplus
 " Airline
 let g:airline_powerline_fonts=1
 let g:airline#extensions#wordcount#filetypes='pandoc\|text\|'                   "Add support when pandoc is activated
-let g:airline_theme='nord'
+let g:airline_theme='edge'
 
 " Vim-table-mode. Set the table separator
 let g:table_mode_corner='|'
@@ -282,4 +284,9 @@ autocmd! User GoyoLeave Limelight!
 
 " Syntax coloration and color theme
 syntax enable
-colorscheme nord
+set background=light
+let g:edge_style = "light"
+colorscheme edge
+
+" Set the Semantic Menu highlight group
+hi CocMenuSel ctermbg=252