feat: use tune

lua/custom/plugins/colorschemes/alduin.lua

@@ -0,0 +1 @@
+return { 'AlessandroYorba/Alduin' }

lua/custom/plugins/colorschemes/init.lua

@@ -2,4 +2,4 @@
 --  I promise not to create any merge conflicts in this directory :)
 --
 -- See the kickstart.nvim README for more information
-return { import = "custom.plugins.themes" }
+return { import = 'custom.plugins.colorschemes' }

lua/custom/plugins/themes/alduin.lua

@@ -1 +0,0 @@
-return { 'rafamadriz/neon' }

lua/custom/plugins/tune.lua

@@ -0,0 +1,6 @@
+return {
+  dir = '~/projects/tune.nvim',
+  config = function()
+    require('tune').setup()
+  end,
+}