This moves the "This site was just updated" modal asking the user if they want to refresh into a subtle prompt that slides down from the header.
Also in this PR I've added a helper to publish message bus messages in JS tests. So instead of this:
```javascript
// Mimic a messagebus message
MessageBus.callbacks
.filterBy("channel", "/global/asset-version")
.map((c) => c.func("somenewversion"));
```
We can have:
```javascript
publishToMessageBus("/global/asset-version", "somenewversion");
```
|
||
|---|---|---|
| .. | ||
| actions-summary-test.js | ||
| avatar-flair-test.js | ||
| button-test.js | ||
| default-notification-item-test.js | ||
| hamburger-menu-test.js | ||
| header-test.js | ||
| home-logo-test.js | ||
| post-links-test.js | ||
| post-menu-test.js | ||
| post-stream-test.js | ||
| post-test.js | ||
| poster-name-test.js | ||
| quick-access-item-test.js | ||
| small-user-list-test.js | ||
| software-update-prompt-test.js | ||
| topic-admin-menu-test.js | ||
| topic-participant-test.js | ||
| topic-status-test.js | ||
| user-menu-test.js | ||
| widget-dropdown-test.js | ||
| widget-test.js | ||