Fix Repository analytics commit statistics failing to render
What does this MR do and why?
Fixes a bug where the Commit statistics graphs were failing to render due to the Code coverage permission missing. When the permission is missing js-code-coverage-chart will not be added to the page, so we can fix by checking it's existence before trying to use it.
MR acceptance checklist
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Screenshots or screen recordings
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How to set up and validate locally
- Navigate to repository analytics for any project (ex. http://gdk.test:3000/gitlab-org/gitlab-shell/-/graphs/main/charts)
- Comment out this line to mock a failed permissions check
- Validate that the page loads successfully without the Code coverage statistics chart
Related to #429655 (closed)