feat(codeium): add codeium extra (#1619)

* [feat] add codeium extension

* PR comments

lua/lazyvim/plugins/extras/coding/codeium.lua

@@ -0,0 +1,25 @@
+return {
+
+  -- codeium
+  {
+    "Exafunction/codeium.nvim",
+    cmd = "Codeium",
+    build = ":Codeium Auth",
+    opts = {},
+  },
+  -- codeium cmp source
+  {
+    "nvim-cmp",
+    dependencies = {
+      {
+        "Exafunction/codeium.nvim",
+      },
+    },
+    ---@param opts cmp.ConfigSchema
+    opts = function(_, opts)
+      table.insert(opts.sources, 1, { name = "codeium", group_index = 2 })
+      opts.sorting = opts.sorting or require("cmp.config.default")().sorting
+    end,
+  },
+
+}