feat(ai): move ai related extras from coding to ai (#4751)

## Description

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maintainers
  why we should accept this pull request. -->

## Related Issue(s)

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  If this PR fixes any issues, please link to the issue here.
  - Fixes #<issue_number>
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## Screenshots

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## Checklist

- [ ] I've read the
[CONTRIBUTING](https://github.com/LazyVim/LazyVim/blob/main/CONTRIBUTING.md)
guidelines.

lua/lazyvim/config/init.lua

@@ -135,7 +135,7 @@ local defaults = {
 }
 
 M.json = {
-  version = 6,
+  version = 7,
   path = vim.g.lazyvim_json or vim.fn.stdpath("config") .. "/lazyvim.json",
   data = {
     version = nil, ---@type string?

lua/lazyvim/util/json.lua

@@ -90,6 +90,13 @@ function M.migrate()
     json.data.extras = vim.tbl_filter(function(extra)
       return not (extra == "lazyvim.plugins.extras.editor.trouble-v3")
     end, json.data.extras or {})
+  elseif json.data.version == 6 then
+    local ai = { "copilot", "codeium", "copilot-chat", "tabnine" }
+    json.data.extras = vim.tbl_map(function(extra)
+      return extra:gsub("^lazyvim%.plugins%.extras%.coding%.(.*)$", function(name)
+        return vim.tbl_contains(ai, name) and ("lazyvim.plugins.extras.ai." .. name) or extra
+      end)
+    end, json.data.extras or {})
   end
 
   M.save()