Minor fixes. (#406)

* Use the links colour from Compound for links.
* Avoid constantly recomputing the RoomScreen view hierarchy while scrolling.

ElementX/Sources/Screens/RoomScreen/View/Timeline/FormattedBodyText.swift

@@ -51,8 +51,7 @@ struct FormattedBodyText: View {
                 }
             }
         }
-        // Should be .element.accent but that's currently black
+        .tint(.element.links)
-        .tint(.blue)
     }
 
     private var blockquoteAttributes: AttributeContainer {

ElementX/Sources/Screens/RoomScreen/View/TimelineTableViewController.swift

@@ -358,8 +358,13 @@ class TimelineTableViewController: UIViewController {
 
 extension TimelineTableViewController: UITableViewDelegate {
     func scrollViewDidScroll(_ scrollView: UIScrollView) {
-        // Dispatches fix runtime warnings about making changes during a view update.
+        let isAtBottom = isAtBottom()
-        DispatchQueue.main.async { self.scrollToBottomButtonVisible = self.isAtBottom() }
+        
+        // Only update the binding on changes to avoid needlessly recomputing the hierarchy when scrolling.
+        if scrollToBottomButtonVisible != isAtBottom {
+            // Dispatch to fix runtime warning about making changes during a view update.
+            DispatchQueue.main.async { self.scrollToBottomButtonVisible = isAtBottom }
+        }
 
         paginateBackwardsPublisher.send(())
     }

changelog.d/pr-406.change

@@ -0,0 +1 @@
+Use the links colour from Compound for links and avoid recomputing the RoomScreen view hierarchy while scrolling.