Vue3: Additional install/upgrade chart steps fail to load

Setup

Rancher version: dev if 2.10

Describe the bug

Charts that have built-in install experiences can contain conditional additional steps
these are defined as vue components in shell/chart/<chart name/steps
this is a process brought in with https://github.com/rancher/dashboard/pull/3101, however the actual steps have been removed (v1 monitoring no longer supported)
whilst testing https://github.com/rancher/dashboard/issues/11773 found out the underlying process is broken

Note 1: broken feature isn't currently being used Note 2: I tagged this with vue3, but haven't confirmed working in vue2

To Reproduce

Add the following to a new file at shell/chart/monitoring/steps/my-step.vue

<script>
export default {
label:      'generic.add',
subtext:    'generic.back',
weight:     100,
components: {},
data() {
return {};
},
mounted() {
this.$emit('update', {
  loading: false,
  ready:   true,
  hidden:  false,
});
},
};
</script>
<template>
<div>
Hello World
</div>
</template>

Run the dashboard
Nav to Apps --> Charts --> Monitoring --> Install

Result

fetch.client.js:75 Error in fetch(): TypeError: customStep.component is not a function
    at Proxy.loadChartStep (install.vue:934:1)
    at install.vue:929:1
    at Array.map (<anonymous>)
    at Proxy.loadChartSteps (install.vue:929:1)
    at async Proxy.fetch (install.vue:269:1)
    at async Proxy.$_fetch (fetch.client.js:72:1)

Expected Result

Additional step show in install chart wizard

Additional context

see shell/store/catalog.jschartSteps,shell/pages/c/_cluster/apps/charts/install.vue`loadChartSteps

rancher / dashboard

Vue3: Additional install/upgrade chart steps fail to load #11898