Kibana version: 7.2.0

Elasticsearch version: 7.2.0

Server OS version: Windows 10

Browser version: Chrome 75.0.3770.100

Browser OS version: Windows 10

Original install method (e.g. download page, yum, from source, etc.) :Download from elastic.co (extract and run)

Describe the bug: When inside a space, the uptime app has a broken link to metrics under the integrations column

Steps to reproduce:

1. Fresh install elasticsearch, kibana, heartbeat version 7.2.0
2. Start heartbeat, elasticserach and kibana to get some data
3. Create a new space in kibana and switch to it (name does not matter)
4. Go to the uptime module
5. Click on the integrations button for a row
6. Click on "Show host metrics"
7. It takes you to a URL that is missing the kibana endpoint, on localhost this url is set to:
   http://s/test/app/infra#/infrastructure/inventory?waffleFilter=(expression:'host.ip%20%3A%20127.0.0.1',kind:kuery)

Expected behavior:
Expect link to contain the kibana endpoint, as it does when you are not in a space.
http://localhost:5601/app/infra#/infrastructure/inventory?waffleFilter=(expression:'host.ip%20%3A%20127.0.0.1',kind:kuery)

Screenshots (if relevant):
Broken link:

Proper link: