refactor: update codam-header plugin configuration and clean up unused code

feat: nvim-tree and neo-tree fully functional

lua/custom/plugins/codam-header.lua

@@ -1,17 +1,13 @@
--- 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,
-    }
+  "f-ras/codam-header.nvim",
+  cmd = { "Stdheader" },
+  opts = {
+    auto_update = true, -- Update header when saving.
+    user = 'dponte',
+      mail = 'dponte@student.codam.nl', -- Your mail.
+    -- add other options.
+  },
+  config = function(_, opts)
+    require("codamheader").setup(opts)
   end,
-}
+}

lua/custom/plugins/nvim-tree.lua

@@ -0,0 +1,25 @@
+return {
+  'nvim-tree/nvim-tree.lua',
+  dependencies = { 'nvim-tree/nvim-web-devicons' }, -- Optional, for file icons
+  config = function()
+    require('nvim-tree').setup {
+      sort = {
+        sorter = 'case_sensitive',
+        folders_first = true,
+        files_first = false,
+      },
+      view = {
+        width = 30,
+      },
+      renderer = {
+        group_empty = true,
+      },
+      filters = {
+        dotfiles = true,
+      },
+    }
+
+    -- Key mapping to toggle NvimTree
+    vim.keymap.set('n', '<C-b>', ':NvimTreeToggle<CR>', { desc = 'Toggle NvimTree' })
+  end,
+}