Add ability to specify options to style-loader and css-loader

packages/ember-auto-import/ts/package.ts

@@ -29,6 +29,8 @@ export interface Options {
   alias?: { [fromName: string]: string };
   webpack?: Configuration;
   publicAssetURL?: string;
+  styleLoaderOptions?: Record<string, unknown>;
+  cssLoaderOptions?: Record<string, unknown>;
   forbidEval?: boolean;
   skipBabel?: { package: string; semverRange?: string }[];
   watchDependencies?: (string | string[])[];
@@ -354,6 +356,16 @@ export default class Package {
     return url;
   }
 
+  get styleLoaderOptions(): Record<string, unknown> | undefined {
+    // only apps (not addons) are allowed to set this
+    return this.isAddon ? undefined : this.autoImportOptions?.styleLoaderOptions;
+  }
+
+  get cssLoaderOptions(): Record<string, unknown> | undefined {
+    // only apps (not addons) are allowed to set this
+    return this.isAddon ? undefined : this.autoImportOptions?.cssLoaderOptions;
+  }
+
   get forbidsEval(): boolean {
     // only apps (not addons) are allowed to set this, because it's motivated by
     // the apps own Content Security Policy.

packages/ember-auto-import/ts/webpack.ts

@@ -188,7 +188,10 @@ export default class WebpackBundler extends Plugin implements Bundler {
           this.babelRule(stagingDir),
           {
             test: /\.css$/i,
-            use: ['eai-style-loader', 'eai-css-loader'],
+            use: [
+              { loader: 'eai-style-loader', options: [...this.opts.packages].find(pkg => pkg.styleLoaderOptions) },
+              { loader: 'eai-css-loader', options: [...this.opts.packages].find(pkg => pkg.cssLoaderOptions) },
+            ],
           },
         ],
       },