Add text on photos - Fontly

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We updated paywall and manage subscriptions sections:
- Scroll Purchase screen bottom panel refactored
- Updated text on paywall screen
- Scroll to bottom to long paywall added
- Added manage subscibtions button in main menu
- Added a help center with articles on how to cancel your trial, get a refund, and exchange subscriptions.

Big update the app:
- Added timeline for video
- Added layer overlay duration setting
- Fixed minor bugs