feat: message headers redesign

[khushal87]

This pull request makes several significant updates to the handling and display of message reminders and thread navigation in the sample app and core library. The main changes include refactoring the way message reminder headers are implemented, improving thread navigation (including scrolling to a targeted message), and exposing new header components for easier customization. Additionally, some code cleanup and minor UI improvements are included.

Message Reminder and Header Refactoring:

• Removed the custom MessageReminderHeader and related logic from the sample app, shifting responsibility for reminder headers to the core library and exposing them as customizable components (MessageReminderHeader, MessageSavedForLaterHeader, SentToChannelHeader). [1] [2] [3] [4] [5] [6] [7]

• Updated the message actions to use the Bell icon directly from the core library instead of a local copy, and adjusted the icon prop to use stroke instead of pathFill for consistency. [1] [2] [3]

Thread Navigation and Targeted Message Scroll:

• Enhanced thread navigation by passing an optional targetedMessageId when navigating to the thread screen, allowing the UI to scroll directly to a specific message within a thread. [1] [2] [3] [4] [5]

• Added an onBackPressThread callback to the thread context and channel props, enabling the thread screen to return to the channel screen and optionally scroll to a targeted message. [1] [2] [3] [4] [5] [6]

Component and Prop Management:

• Removed direct usage of MessageHeader and MessageReminderHeader props in the sample app screens, relying on the core library's exposed components and context for message header rendering. [1] [2] [3] [4]

Minor Improvements and Cleanup:

• Fixed a minor translation string in ChannelPreviewMessage to remove an unnecessary colon from the translation key.

• Ensured the onThreadSelect prop is passed to the MessageWithContext component for better thread handling.

These changes collectively improve the flexibility, maintainability, and user experience of message reminders and thread navigation in the app.

[Stream-SDK-Bot]

SDK Size

title	develop	branch	diff	status
js_bundle_size	424 KB	429 KB	+5295 B	🔴

[isekovanic]

Please address the couple of comments I've left, looks good otherwise