Load correct url for multisites when clicked in site selector #16883

Description:

As MultiSites dashboard should not be loaded with any additional parameters we should not load it using propagateNewPage, as that manipulates the hash only. Simply changing the location should be fine in this case.

fixes #16879

Review

• [ ] Functional review done
• [ ] Usability review done (is anything maybe unclear or think about anything that would cause people to reach out to support)
• [ ] Security review done see checklist
• [ ] Code review done
• [ ] Tests were added if useful/possible
• [ ] Reviewed for breaking changes
• [ ] Developer changelog updated if needed
• [ ] Documentation added if needed
• [ ] Existing documentation updated if needed