Fix confirmation for RTL overridden links

Riot/Modules/MatrixKit/Categories/NSString+MatrixKit.swift

@@ -18,6 +18,11 @@ import Foundation
 import MatrixSDK.MXLog
 
 public extension NSString {
+
+    private enum Constants {
+        static let RTLOverrideChar: String = "\u{202E}"
+    }
+
     /// Gets the first URL contained in the string ignoring any links to hosts defined in
     /// the `firstURLDetectionIgnoredHosts` property of `MXKAppSettings`.
     /// - Returns: A URL if detected, otherwise nil.
@@ -63,4 +68,14 @@ public extension NSString {
         
         return detectedURL
     }
+
+    /// Returns if the string contains an RTL override character
+    @objc func mxk_containsRTLOverride() -> Bool {
+        return contains(Constants.RTLOverrideChar)
+    }
+
+    /// Returns a new string which is reversed of the receiver
+    @objc func mxk_reversed() -> NSString {
+        return String((self as String).reversed()) as NSString
+    }
 }