bufferline broke because the added active toggle will always be false. Set it in default_config to fix behavior

lua/core/bufferline.lua

@@ -1,12 +1,20 @@
-lvim.builtin.bufferline = {
-  active = true,
-  keymap = {
-    normal_mode = {
-      ["<S-l>"] = ":BufferNext<CR>",
-      ["<S-h>"] = ":BufferPrevious<CR>",
-    },
-  },
-}
+local M = {}
 
-local keymap = require "keymappings"
-keymap.append_to_defaults(lvim.builtin.bufferline.keymap)
+M.config = function()
+  lvim.builtin.bufferline = {
+    active = true,
+    keymap = {
+      normal_mode = {
+        ["<S-l>"] = ":BufferNext<CR>",
+        ["<S-h>"] = ":BufferPrevious<CR>",
+      },
+    },
+  }
+end
+
+M.setup = function()
+  local keymap = require "keymappings"
+  keymap.append_to_defaults(lvim.builtin.bufferline.keymap)
+end
+
+return M

lua/default-config.lua

@@ -1278,3 +1278,4 @@ require("core.telescope").config()
 require("core.treesitter").config()
 require("core.nvimtree").config()
 require("core.rooter").config()
+require("core.bufferline").config()

lua/plugins.lua

@@ -176,7 +176,7 @@ return {
   {
     "romgrk/barbar.nvim",
     config = function()
-      require "core.bufferline"
+      require("core.bufferline").setup()
       if lvim.builtin.bufferline.on_config_done then
         lvim.builtin.bufferline.on_config_done()
       end