Add aerial config for outlining

Author: dfles

.config/nvim/lua/plugins/aerial.lua

@@ -0,0 +1,44 @@
+return {
+  -- Code outline and navigation
+  {
+    "stevearc/aerial.nvim",
+    opts = {
+      backends = { "treesitter", "lsp", "markdown", "man" },
+      layout = {
+        width = 30,
+        default_direction = "right",
+        placement = "window",
+      },
+      show_guides = true,
+      filter_kind = false,
+
+      -- File type specific configurations
+      markdown = {
+        update_when = "insert_leave",
+      },
+
+      -- Enable for specific file types
+      attach_mode = "window",
+
+      -- Treesitter symbol kinds to show
+      treesitter = {
+        update_delay = 300,
+      },
+    },
+    keys = {
+      { "<leader>o", "<cmd>AerialToggle<cr>", desc = "Toggle outline" },
+      { "<leader>O", "<cmd>AerialNavToggle<cr>", desc = "Outline navigation" },
+    },
+    config = function(_, opts)
+      require("aerial").setup(opts)
+
+      -- Auto-open aerial for supported file types (optional)
+      vim.api.nvim_create_autocmd("FileType", {
+        pattern = { "markdown" },
+        callback = function()
+          require("aerial").open()
+        end,
+      })
+    end,
+  },
+}