Stream page browsing breaks when there is a slash in stream name

[shaan1337]

Version tested: 20.10.0

Reproduction steps:

1. Create a stream name with a slash in it (e.g test/1 or test/abc)
2. Add more than 20 events to the stream generate a second page
3. Browse the stream and click on the Next button
4. Nothing happens and the console shows the following error:

 http://localhost:2113/streams/test%2F1/40/forward/20. Error: Not Found

Workaround

Replacing %2F by ~2F in the URL of the Next/Previous buttons seems to fix the issue.