[AND-203] Fix system messages not hidden if showSystemMessages=false.

[VelikovPetar]

🎯 Goal

The MessageListController flag showSystemMessages was not respected, due to the DeletedMessageVisibility taking precedence. We now properly take this flag into consideration, if the message is not deleted.

🛠 Implementation details

Change the MessageListController.filterMessagesToShow logic to consider the DeletedMessageVisibility when the message is deleted, and consider showSystemMessages if the message is a system one.

🎨 UI Changes

Scenario where showSystemMessages = false

Before	After
before.mp4	after.mp4

🧪 Testing

1. Apply the given patch
2. Run the compose sample app
3. Open a chat with a system message
4. The system message should NOT be visible

Patch

Index: stream-chat-android-compose-sample/src/main/java/io/getstream/chat/android/compose/sample/ui/MessagesActivity.kt
IDEA additional info:
Subsystem: com.intellij.openapi.diff.impl.patch.CharsetEP
<+>UTF-8
===================================================================
diff --git a/stream-chat-android-compose-sample/src/main/java/io/getstream/chat/android/compose/sample/ui/MessagesActivity.kt b/stream-chat-android-compose-sample/src/main/java/io/getstream/chat/android/compose/sample/ui/MessagesActivity.kt
--- a/stream-chat-android-compose-sample/src/main/java/io/getstream/chat/android/compose/sample/ui/MessagesActivity.kt	(revision 99dd6beefa5dd859fa7bafc0cac7d98c72105d18)
+++ b/stream-chat-android-compose-sample/src/main/java/io/getstream/chat/android/compose/sample/ui/MessagesActivity.kt	(date 1736165306279)
@@ -113,6 +113,7 @@
             autoTranslationEnabled = ChatApp.autoTranslationEnabled,
             isComposerLinkPreviewEnabled = ChatApp.isComposerLinkPreviewEnabled,
             deletedMessageVisibility = DeletedMessageVisibility.ALWAYS_VISIBLE,
+            showSystemMessages = false,
             messageId = intent.getStringExtra(KEY_MESSAGE_ID),
             parentMessageId = intent.getStringExtra(KEY_PARENT_MESSAGE_ID),
         )

[github-actions]

SDK Size Comparison 📏

SDK	Before	After	Difference	Status
stream-chat-android-client	3.04 MB	3.04 MB	0.00 MB	🟢
stream-chat-android-offline	3.25 MB	3.25 MB	0.00 MB	🟢
stream-chat-android-ui-components	7.91 MB	7.91 MB	0.00 MB	🟢
stream-chat-android-compose	9.04 MB	9.04 MB	0.00 MB	🟢

[kanat]

LGTM

[skydoves]

Looks good to me!