docs: update references to lodash and recommend es-toolkit

docs/1.getting-started/12.upgrade.md

@@ -638,11 +638,11 @@ We have raised PRs to update modules using EJS syntax, but if you need to do thi
 
 * Moving your string interpolation logic directly into `getContents()`.
 * Using a custom function to handle the replacement, such as in https://github.com/nuxt-modules/color-mode/pull/240.
-* Continuing to use `lodash`, as a dependency of _your_ project rather than Nuxt:
+* Use `es-toolkit/compat` (a drop-in replacement for lodash template), as a dependency of _your_ project rather than Nuxt:
 
 ```diff
 + import { readFileSync } from 'node:fs'
-+ import { template } from 'lodash-es'
++ import { template } from 'es-toolkit/compat'
   // ...
   addTemplate({
     fileName: 'appinsights-vue.js'

packages/schema/src/config/build.ts

@@ -85,20 +85,14 @@ export default defineUntypedSchema({
     },
 
     /**
-     * You can provide your own templates which will be rendered based
-     * on Nuxt configuration. This feature is specially useful for using with modules.
+     * It is recommended to use `addTemplate` from `@nuxt/kit` instead of this option.
      *
-     * Templates are rendered using [`lodash/template`](https://lodash.com/docs/4.17.15#template).
      * @example
      * ```js
      * templates: [
      *   {
      *     src: '~/modules/support/plugin.js', // `src` can be absolute or relative
      *     dst: 'support.js', // `dst` is relative to project `.nuxt` dir
-     *     options: {
-     *       // Options are provided to template as `options` key
-     *       live_chat: false
-     *     }
      *   }
      * ]
      * ```