Implement Message Copying Feature in Chat

[Shruti-1910]

Description:

Currently, the chat feature lacks the capability for users to copy messages to their clipboard for easy sharing or reference outside of the chat interface. Implementing a message copying feature will provide users with greater flexibility and convenience in handling and sharing message content.

Expected Behavior:

Introduce a feature that allows users to copy individual messages or portions of messages to their device's clipboard.
Provide a straightforward method (e.g., long-press gesture) to select and copy text from messages.
Ensure that copied messages maintain their original formatting and content integrity.

Acceptance Criteria:

1. User Interface:

• Implement a user-friendly mechanism (e.g., copy button or long-press gesture) to initiate message copying within chat conversations.
• Design the interface to indicate when messages or portions of messages are selected for copying.

2. Functionality:

• Allow users to select and copy text from messages, including support for copying media captions or links if applicable.
• Ensure that copied messages are accessible via the device's clipboard for easy sharing across other apps or platforms.