feat: add monokai colorscheme and nvim-tree plugin configuration

lua/custom/plugins/codam-header.lua

@@ -0,0 +1,17 @@
+-- Codam header
+return {
+  config = function()
+    require('codamheader').setup {
+      auto_update = true,
+      user = 'dponte',
+      mail = 'dponte@student.codam.nl',
+      git = {
+        enabled = false,
+        bin = 'git',
+        user_global = true,
+        email_global = true,
+      },
+      exascii_left = false,
+    }
+  end,
+}