make home page connected to CMS

[bcho892]

Could add customisable youtube video, but probably not needed rn

Will need to restyle the member benefit cards to use images instead of the icons later

[github-actions[bot]]

Visit the preview URL for this PR (updated for commit c7b2bc0):

https://uasc-ceebc--pr632-629-frontend-create-uivhe70m.web.app

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