Reduce Lottie animation JSON file

[travjenkins]

Changes

https://github.com/estuary/marketing-site/issues/304

• Created a .min version of the file with https://github.com/SJunWah/lottie-file-optimizer and switched to using that animation file.

Misc

• Added labels to buttons that were missing them (called out in Lighthouse)

Tests / Screenshots

Local - do not see big change in quality

[github-actions[bot]]

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