add more plugins and change theme

lua/custom/plugins/filetree.lua

@@ -0,0 +1,12 @@
+return {
+  'nvim-neo-tree/neo-tree.nvim',
+  version = '*',
+  dependencies = {
+    'nvim-lua/plenary.nvim',
+    'nvim-tree/nvim-web-devicons',
+    'MunifTanjim/nui.nvim',
+  },
+  config = function ()
+    require('neo-tree').setup {}
+  end
+}

lua/custom/plugins/theme.lua

@@ -0,0 +1,8 @@
+return {
+  'catppuccin/nvim',
+  priority = 1000,
+  config = function()
+    vim.cmd.colorscheme 'catppuccin'
+  end,
+}
+

lua/custom/plugins/vim-tmux-navigator.lua

@@ -0,0 +1,4 @@
+return {
+    'christoomey/vim-tmux-navigator',
+    lazy = false,
+}