Add flex wrap to social login container

[shrinathprabhu]

PR

Describe your changes

• Added flex wrap to the social login container and added a gap of 1 rem
• Removed margin from the social login icon buttons
• Updated margin-top of the footer

Checklist before requesting a review

• You have performed a self-review of your own code
• You are using approved terminology
• Your changes have been tested locally
• Your code builds clean without any errors or warnings

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