feat nvim: add onedark theme

dot_config/exact_nvim/exact_lua/exact_plugins/colorscheme/onedark.lua

@@ -0,0 +1,14 @@
+-- Using Lazy
+return {
+  "navarasu/onedark.nvim",
+  priority = 1000, -- make sure to load this before all the other start plugins
+  config = function()
+    require('onedark').setup {
+      style = 'dark'
+      -- style = 'darker'
+      -- style = 'cool'
+    }
+    -- Enable theme
+    require('onedark').load()
+  end
+}