[Bug][Lens][Dashboard] Dashboard title encoding issue after navigating back from creating new Lens vis

[Dosant]

Kibana version: master, 7.x, 7.6

Introduced in: #53110

Describe the bug:

After creating new Lens visualisation and navigating back to dashboard, the encoding in dashboard title (and probably other places where state is coming from URL) gets messed up

e.g.

Having dashboard title:
This is a new dashboard -> This%20is%20a%20new%20dashboard

Steps to reproduce:

1. Create a dashboard with spaces in title
2. Add new visualisation -> Create new -> Lens
3. Create Lens Vis and Save it.

After automatically navigating back to dashboard the dashboard title on UI gets wrong encoding.

Expected behavior:

The title should stay the same.

Screenshots (if relevant):

Errors in browser console (if relevant):

No

Provide logs and/or server output (if relevant):

Any additional context: