Fix undefined in githubURL when GITHUB_REPOSITORY is not set

[sushobhit-lt]

Summary

• Added iPad (9th generation) device configuration with viewport 810x1080
• Fixed githubURL containing undefined when GITHUB_REPOSITORY env var is not set (falls back to empty string instead)
• Bumped package version to 4.1.59

Test plan

• Verify githubURL no longer contains undefined when running outside GitHub Actions
• Verify githubURL is correctly set when running in GitHub Actions with GITHUB_REPOSITORY available
• Verify iPad (9th generation) is available as a device option

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