🖼️ Issue: Add Feature Screenshots with Mock Data

📝 Description

Create visual documentation for the app by capturing screenshots of key features.
Mock data should be used to illustrate functionality without exposing real user information.

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✅ Tasks

• Capture screenshots of main screens (dashboard, scan results, encryption status).
• Include screenshots of WiFi/Bluetooth scan results with mock GPS data.
• Add screenshots of import/export flows with encrypted/unencrypted databases.
• Capture dialogs for passphrase setup, unlock, and encryption settings.
• Use consistent styling and highlight key features in the images.
• Annotate screenshots if needed to explain functionality.
• Save images in docs/screenshots/ and link them in README and Quickstart guides.

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🧾 Notes

• Ensure no real user or sensitive data is visible.
• Mock data should resemble real app output to demonstrate features accurately.
• Include screenshots for both encrypted and unencrypted workflows where relevant.