Remove errant trailing backslash on svg path

[robertdeniszczyc2]

What?

There is a trailing backslash in the govuk-template file on the svg path line, which causes console error:

Error: <path> attribute d: Expected path command, "…5 7.9-.8 12.3-.8\\".

This change removes the error.

Why?

How?

Testing?

Screenshots (optional)

Anything Else? (optional)

Check list

• I have reviewed my own pull request for linting issues (e.g. adding new lines)
• I have written tests (if relevant)
• I have created a JIRA number for my branch
• I have created a JIRA number for my commit
• I have followed the chris beams method for my commit https://cbea.ms/git-commit/
  here is an example commit
• Ensure workflow jobs are passing especially tests
• I will squash the commits before merging

[sulthan-ahmed]

Thanks for highlighting @robertdeniszczyc2 it looks good, we just need to publish a beta package and get this tested