Dynamic background is added

[mnosov622]

Description

Added dynamic background to the app. The background image is changing every 10 seconds.

Checklist

• [x] I am making a proper pull request, not spam.
• [x] I've checked the issue list before deciding what to submit.

Related Issues or Pull Requests

This PR fixes #41

Thank you !

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Name	Status	Preview	Updated
meetify	✅ Ready (Inspect)	Visit Preview	Oct 17, 2022 at 1:45AM (UTC)

[ashavijit]

will check nd merge!

[mnosov622]

Thank you !

Could you please add label hacktoberfest ?