Fixes for meta tags and social icons

Changes

Modified code to fix issues with social icons not working and to add og tags.
Testing

Run grunt.
Visit the OAH pages and verify that the social icons work and the og tags are correct.

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[ ] New functions include new tests
[ ] New functions are documented (with a description, list of inputs, and expected output)
[ ] Placeholder code is flagged
[ ] Visually tested in supported browsers and devices
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