added treesiter, relative numbering, neotree, and bufferline

init.lua

@@ -102,7 +102,7 @@ vim.g.have_nerd_font = true
 vim.opt.number = true
 -- You can also add relative line numbers, to help with jumping.
 --  Experiment for yourself to see if you like it!
--- vim.opt.relativenumber = true
+vim.opt.relativenumber = true
 
 -- Enable mouse mode, can be useful for resizing splits for example!
 vim.opt.mouse = 'a'
@@ -156,6 +156,8 @@ vim.opt.cursorline = true
 
 -- Minimal number of screen lines to keep above and below the cursor.
 vim.opt.scrolloff = 10
+vim.opt.smarttab = true
+vim.opt.shiftwidth = 4
 
 -- [[ Basic Keymaps ]]
 --  See `:help vim.keymap.set()`
@@ -231,6 +233,31 @@ require('lazy').setup({
   -- NOTE: Plugins can be added with a link (or for a github repo: 'owner/repo' link).
   'tpope/vim-sleuth', -- Detect tabstop and shiftwidth automatically
   'loctvl842/monokai-pro.nvim',
+  {
+    'nvim-neo-tree/neo-tree.nvim',
+    branch = 'v3.x',
+    dependencies = {
+      'nvim-lua/plenary.nvim',
+      'nvim-tree/nvim-web-devicons', -- not strictly required, but recommended
+      'MunifTanjim/nui.nvim',
+      -- "3rd/image.nvim", -- Optional image support in preview window: See `# Preview Mode` for more information
+    },
+  },
+  {
+    'nvim-treesitter/nvim-treesitter',
+    build = ':TSUpdate',
+    config = function()
+      local configs = require 'nvim-treesitter.configs'
+
+      configs.setup {
+        ensure_installed = { 'c', 'lua', 'vim', 'vimdoc', 'query', 'elixir', 'heex', 'javascript', 'html' },
+        sync_install = false,
+        highlight = { enable = true },
+        indent = { enable = true },
+      }
+    end,
+  },
+  { 'akinsho/bufferline.nvim', version = '*', dependencies = 'nvim-tree/nvim-web-devicons' },
   -- NOTE: Plugins can also be added by using a table,
   -- with the first argument being the link and the following
   -- keys can be used to configure plugin behavior/loading/etc.
@@ -607,9 +634,9 @@ require('lazy').setup({
       --  - settings (table): Override the default settings passed when initializing the server.
       --        For example, to see the options for `lua_ls`, you could go to: https://luals.github.io/wiki/settings/
       local servers = {
-        -- clangd = {},
+        clangd = {},
-        -- gopls = {},
+        gopls = {},
-        -- pyright = {},
+        pyright = {},
         -- rust_analyzer = {},
         -- ... etc. See `:help lspconfig-all` for a list of all the pre-configured LSPs
         --