Improve inline notification story

[davidnixon]

Title line template: [Improve inline notification story]: Add migration notes and slots examples

Detailed description

Inline Notification story docs should add migration notes similiar to inline loading to call out the removal of the v-html support for the subtitle.

https://vue.carbondesignsystem.com/?path=/story/component-cvinlinenotification--info

Steps to reproduce the issue

1. Step one
2. Step two
3. Step three
4. etc.

Additional information

This displayed correctly in Vue2 components

Example of updated usage: In Vue 2

      <cv-inline-notification
        style="margin: 0"
        kind="warning"
        title="Warning"
        :sub-title="getLink"
        :low-contrast="true"
        :hide-close-button="true"
      />

Where "getLink" returned an HTML string

In Vue 3

      <cv-inline-notification
        style="margin: 0"
        kind="warning"
        title="Warning"
        :low-contrast="true"
        :hide-close-button="true"
      >
        <template #sub-title>
          Requires you to submit a request for use.<br />
          <a target="_blank" :href="item.request_link">Link to request form</a>
        </template>
      </cv-inline-notification>

[LucasGazetta]

Hey, can i give it a look?

[davidnixon]

That would be great! Thanks!

[github-actions[bot]]

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