logo.svg is broken

Problem/Motivation

The "logo.svg" icon appears as broken image and should be fixed.

Steps to reproduce

Visit logo svg in the repo

Locally, pull in the file from /themes/contrib/seven/logo.svg
See that you get the following error:
> error on line 1 at column 3877: Entity 'nbsp' not defined

Proposed resolution

I think we can just replace the " " with a " " and that should resolve.

Remaining tasks

X Create issue fork
X Create merge request
- Test fix (Community)
- Merge code

User interface changes

The broken image should now appear, if using the default icon.

API changes

None.

Data model changes

None.