set to my InputBarAccessoryView fork for now

.gitmodules

@@ -3,4 +3,4 @@
 	url = https://github.com/deltachat/deltachat-core-rust.git
 [submodule "deltachat-ios/InputBarAccessoryView"]
 	path = deltachat-ios/InputBarAccessoryView
-	url = https://github.com/nathantannar4/InputBarAccessoryView.git
+	url = https://github.com/cyBerta/InputBarAccessoryView.git