Possible to crash a wiki by placing JS in the Site Title

[someguynamedmatt]

Describe the bug
An administrator can put incorrect input into the Site Title and create an irrecoverable crash in the wiki. Don't do this unless you have an easy way of getting into the source. This will make the wiki inoperable.

To Reproduce
Steps to reproduce the behavior:

1. Go to a Wiki's Dashboard
2. Click on General
3. Put some arbitrary HTML/JS as the Site Title value, e.g. "<script>console.log('hi')</script>" (quotes for emphasis, don't use)
4. Save the page
5. Refresh the page
6. See error on the page and in the console (see screenshots, below)

Expected behavior
Input should be sanitized

Screenshots
(any page on the wiki renders as...)

[NGPixel]

Not sure why you would do that in the first place, but fixed by 8c205b6