fix: issue with vue build

Author: nmerget

packages/components/configs/plugins/undefined-key.cjs

@@ -0,0 +1,12 @@
+/**
+ * @type {import('@builder.io/mitosis').MitosisPlugin}
+ */
+module.exports = () => ({
+	code: {
+		post: (code) => {
+			return code
+				.replaceAll(':key="undefined"', '')
+				.replaceAll('key={undefined}', '');
+		}
+	}
+});

packages/components/configs/stencil/index.cjs

@@ -1,4 +1,5 @@
 const onClickPlugin = require('../plugins/on-click.cjs');
+const undefinedKeyPlugin = require('../plugins/undefined-key.cjs');
 
 /**
  * @type {import('@builder.io/mitosis').ToStencilOptions}
@@ -9,5 +10,5 @@ module.exports = {
 		enabled: true,
 		customRef: '_ref'
 	},
-	plugins: [onClickPlugin]
+	plugins: [undefinedKeyPlugin, onClickPlugin]
 };

packages/components/configs/vue/index.cjs

@@ -1,11 +1,12 @@
 const onClickPlugin = require('../plugins/on-click.cjs');
 const defineOptionsPlugin = require('../plugins/vue/define-options.cjs');
+const undefinedKeyPlugin = require('../plugins/undefined-key.cjs');
 
 /**
  * @type {import('@builder.io/mitosis').ToVueOptions}
  */
 module.exports = {
 	typescript: true,
 	api: 'composition',
-	plugins: [onClickPlugin, defineOptionsPlugin]
+	plugins: [undefinedKeyPlugin, onClickPlugin, defineOptionsPlugin]
 };