feat(vue): add ionic vue beta (#22062)

packages/vue/src/components/IonBackButton.ts

@@ -0,0 +1,26 @@
+import { h, inject, defineComponent } from 'vue';
+
+export const IonBackButton = defineComponent({
+  name: 'IonBackButton',
+  setup(_, { attrs, slots }) {
+    const ionRouter: any = inject('navManager');
+
+    const onClick = () => {
+      const defaultHref = attrs['default-href'] || attrs['defaultHref'];
+      const routerAnimation = attrs['router-animation'] || attrs['routerAnimation'];
+
+      ionRouter.handleNavigateBack(defaultHref, routerAnimation);
+    }
+
+    return () => {
+      return h(
+        'ion-back-button',
+        {
+          onClick,
+          ...attrs
+        },
+        slots.default && slots.default()
+      )
+    }
+  }
+});