Direct links to service /metadata page are redirected to /health-checks

### Overview of the Issue

One is unable to provide a link to a service's metadata page. Such a link gets redirected to the health-check for the service.

### Reproduction Steps

Steps to reproduce this issue/view the area for improvement, eg:

1. Visit the UI page at `/ui//services//instances///health-checks`
2. Click "Metadata" tab.
3. Copy new URL
4. Open URL in new tab, observe page does not load metadata but is instead redirected to /health-checks.

### Describe the solution you'd like

I'd like to be able to link directly to the metadata page.

### Consul Version

1.12.0

### Browser and Operating system details

Issue reported in Firefox and Chrome.

### Screengrabs / Web Inspector logs

Nothing particularly interesting in browser logs. This appears to be a routing issue in ember.js.