Add type declaration for postcss-import

Signed-off-by: Patrik Oldsberg <poldsberg@gmail.com>
Co-authored-by: Cursor <cursoragent@cursor.com>

packages/cli/src/modules/build/lib/builder/plugins.ts

@@ -16,7 +16,6 @@
 
 import fs from 'fs-extra';
 import postcss from 'postcss';
-// @ts-expect-error - no types available
 import postcssImport from 'postcss-import';
 import {
   dirname,

packages/cli/src/types.d.ts

@@ -259,3 +259,8 @@ declare module 'webpack-node-externals' {
 }
 
 declare module '@esbuild-kit/cjs-loader' {}
+
+declare module 'postcss-import' {
+  import { Plugin } from 'postcss';
+  export default function postcssImport(): Plugin;
+}