build(plugins-config): hacky attempt to work around define.amd umd modules breaking runtime

packages/grafana-plugin-configs/rspack.config.ts

@@ -97,6 +97,20 @@ const config = async (env: Record<string, unknown>): Promise<Configuration> => {
             },
           ],
         },
+        // HACKS: Workaround for rspack not outputting UMD modules as webpack does.
+        // We have systemjs amd define which doesn't work like standard amd define so we need to disable it,
+        // in any umd module otherwise it will break at runtime.
+        {
+          test: [require.resolve('json-logic-js'), require.resolve('classnames')],
+          use: [
+            {
+              loader: require.resolve('imports-loader'),
+              options: {
+                additionalCode: 'var define = false; /* Disable AMD for misbehaving libraries */',
+              },
+            },
+          ],
+        },
         {
           exclude: /(node_modules)/,
           test: /\.[tj]sx?$/,
@@ -150,6 +164,7 @@ const config = async (env: Record<string, unknown>): Promise<Configuration> => {
     },
 
     output: {
+      clean: true,
       filename: '[name].js',
       library: {
         type: 'amd',