Univeral links: Improved UX: Display a loading wheel while the app is gathering information from the hs about the universal link

Vector/ViewController/HomeViewController.m

@@ -367,6 +367,18 @@
     [super setKeyboardHeight:keyboardHeight];
 }
 
+- (void)startActivityIndicator
+{
+    // Redirect the operation to main displayed VC
+    [recentsViewController startActivityIndicator];
+}
+
+- (void)stopActivityIndicator
+{
+    // Redirect the operation to main displayed VC
+   [recentsViewController stopActivityIndicator];
+ }
+
 #pragma mark - Override UIViewController+VectorSearch
 
 - (void)setKeyboardHeightForBackgroundImage:(CGFloat)keyboardHeight