Fixes #2286 - Timeline entries flickering when a lot of mention pills present

ElementX/Sources/Other/Extensions/AttributedString.swift

@@ -18,7 +18,12 @@ import Foundation
 
 extension AttributedString {
     var formattedComponents: [AttributedStringBuilderComponent] {
-        runs[\.blockquote].map { value, range in
+        var components = [AttributedStringBuilderComponent]()
+        
+        for (index, run) in runs[\.blockquote].enumerated() {
+            let value = run.0
+            let range = run.1
+            
             var attributedString = AttributedString(self[range])
             
             // Remove trailing new lines if any
@@ -29,8 +34,10 @@ extension AttributedString {
             
             let isBlockquote = value != nil
             
-            return AttributedStringBuilderComponent(attributedString: attributedString, isBlockquote: isBlockquote)
+            components.append(AttributedStringBuilderComponent(id: index, attributedString: attributedString, isBlockquote: isBlockquote))
         }
+        
+        return components
     }
     
     /// Replaces the specified placeholder with a string that links to the specified URL.