Improve link visibility in room list message preview

When a room list’s “last message” contains a URL, leave it set to the default color of the text field instead of forcing it to match the accent color.

Fixes #81

Author: subpop

Relay/Views/RoomList/RoomListRow.swift

@@ -146,7 +146,6 @@ extension AttributedString {
 
         for range in linkRanges {
             result[range].link = nil
-            result[range].foregroundColor = .accentColor
         }
 
         return result