Add support for marking a channel as unread from a given timestamp

[VelikovPetar]

🎯 Goal

Add the operation to mark a channel as unread starting from a given timestamp.

🛠 Implementation details

• Add new ChatClient/ChannelClient method markUnread which accepts a Date as the timestamp to mark the channel as unread from.
• Add new ChatClient/ChannelClient method markThreadUnread which accepts only a threadId. Deprecate the old markThreadUnread which accepts a messageId which is currently not supported (it never was, the messageId is currently ignored if threadId is passed).
• Unify some of the different internal ChatApi methods into a single one (markUnread)

🎨 UI Changes

NA

🧪 Testing

1. Apply the given patch
2. Open a channel
3. Mark a message as unread
4. The channel should be marked as unread starting from the selected message
   Note: We currently have a UI bug, and the unread separator does not appear on the first markUnread (the channel is still marked). Re-entering the channel (or marking the channel as unread again) will show the separator correctly.

Provide the patch summary here

Subject: [PATCH] Update tests.
---
Index: stream-chat-android-ui-common/src/main/kotlin/io/getstream/chat/android/ui/common/feature/messages/list/MessageListController.kt
IDEA additional info:
Subsystem: com.intellij.openapi.diff.impl.patch.CharsetEP
<+>UTF-8
===================================================================
diff --git a/stream-chat-android-ui-common/src/main/kotlin/io/getstream/chat/android/ui/common/feature/messages/list/MessageListController.kt b/stream-chat-android-ui-common/src/main/kotlin/io/getstream/chat/android/ui/common/feature/messages/list/MessageListController.kt
--- a/stream-chat-android-ui-common/src/main/kotlin/io/getstream/chat/android/ui/common/feature/messages/list/MessageListController.kt	(revision 43c2af02087cdc65ee72da50f5f9cee707ca42fc)
+++ b/stream-chat-android-ui-common/src/main/kotlin/io/getstream/chat/android/ui/common/feature/messages/list/MessageListController.kt	(date 1764517867528)
@@ -1802,7 +1802,7 @@
         cid.cidToTypeAndId().let { (channelType, channelId) ->
             val call = when (val mode = mode.value) {
                 is MessageMode.Normal -> {
-                    chatClient.markUnread(channelType, channelId, messageId = message.id)
+                    chatClient.markUnread(channelType, channelId, timestamp = message.createdAt!!.apply { time -= 1000 })
                 }
 
                 is MessageMode.MessageThread -> {

[github-actions]

SDK Size Comparison 📏

SDK	Before	After	Difference	Status
stream-chat-android-client	5.25 MB	5.25 MB	0.00 MB	🟢
stream-chat-android-offline	5.48 MB	5.48 MB	0.00 MB	🟢
stream-chat-android-ui-components	10.59 MB	10.59 MB	0.00 MB	🟢
stream-chat-android-compose	12.81 MB	12.81 MB	0.00 MB	🟢

[sonarqubecloud]

Quality Gate passed

Issues
5 New issues
0 Accepted issues

Measures
0 Security Hotspots
81.2% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarQube Cloud