done with Updates in Profile Name doesnot Sync across Peers #25

[dikshantbhangala]

#25 done with the changes required
Chat Screen (chart_page.dart) Updates

• Added logic to decrypt RSA-encrypted messages before displaying them.
• Integrated pointycastle library for handling RSA encryption.
• Grouped Messages by Date:
• Grouped chat messages based on the timestamp for better organization

File Attachments:

• Added support for displaying file messages with a file preview option using FilePreview.

2. Global Variables and Logic (global.dart)

• Added variables to hold the RSA private key for decryption (myPrivateKey).
• Updated logic to handle message types (e.g., text, file) globally.
• Restructured data format to support file message metadata (fileName, filePath).

Communication Service (communication_service.dart)

• Integrated encryption for outgoing messages.
• Added support for sending file metadata (e.g., file path, file name).
• Handled exceptions for failed message sending scenarios.

Profile Screen Updates (profile.dart)

• Minor UI adjustments for better user experience.
• Resolved dynamic data rendering issues for profile details.