Nordic theme bufferline edit (#26)

* Add nordic theme, based on nord colorscheme, similar to the theme on lightline.vim

* edit xterm colors codes

* Edit colors bufferline

* edit background bufferlines colors

Co-authored-by: Jonathan <jonathan@arch.lan>
Co-authored-by: jonathan <j.guyot-bourgeois@libr.im>

lua/hardline/themes/nordic.lua

@@ -103,9 +103,9 @@ return {
     separator = inactive,
     current = {
       guifg = colors.black.gui,
-      guibg = colors.green.gui,
+      guibg = colors.cyan.gui,
       ctermfg = colors.black.cterm,
-      ctermbg = colors.green.cterm,
+      ctermbg = colors.cyan.cterm,
     },
     current_modified = {
       guifg = colors.black.gui,
@@ -114,15 +114,15 @@ return {
       ctermbg = colors.cyan.cterm,
     },
     background = {
-      guifg = colors.green.gui,
+      guifg = colors.cyan.gui,
       guibg = colors.black.gui,
-      ctermfg = colors.green.cterm,
+      ctermfg = colors.cyan.cterm,
       ctermbg = colors.black.cterm,
     },
     background_modified = {
-      guifg = colors.blue.gui,
+      guifg = colors.cyan.gui,
       guibg = colors.black.gui,
-      ctermfg = colors.blue.cterm,
+      ctermfg = colors.cyan.cterm,
       ctermbg = colors.black.cterm,
     },
   },