Add markRoomReadMsecDelay setting

CHANGELOG.md

@@ -10,6 +10,11 @@ and this project adheres to
 
 ## Unreleased
 
+### Added
+
+- `markRoomReadMsecDelay` to configure how long in milliseconds Mirage will
+  wait before marking a focused room as read, defaults to `200`
+
 ### Changed
 
 - **Unread message/highlight counters**:

src/backend/user_files.py

@@ -239,6 +239,7 @@ class UISettings(JSONDataFile):
             "hideProfileChangeEvents": True,
             "hideMembershipEvents": False,
             "hideUnknownEvents": True,
+            "markRoomReadMsecDelay": 200,
             "maxMessageCharactersPerLine": 65,
             "ownMessagesOnLeftAboveWidth": 895,
             "theme": "Midnight.qpl",

src/gui/Pages/Chat/Timeline/EventList.qml

@@ -353,7 +353,7 @@ Rectangle {
     }
 
     Timer {
-        interval: 1000
+        interval: window.settings.markRoomReadMsecDelay
 
         running:
             (chat.roomInfo.unreads || chat.roomInfo.highlights) &&