Fix not being able to collapse/expand statuses

Instead of simply returning the content text view from hitTest(_:with:),
we need to call the super method so that the system still performs its
own checks.

Tusker/Views/ContentTextView.swift

@@ -181,7 +181,7 @@ class ContentTextView: LinkTextView {
     // only accept touches that are over a link
     override func hitTest(_ point: CGPoint, with event: UIEvent?) -> UIView? {
         if getLinkAtPoint(point) != nil || isSelectable {
-            return self
+            return super.hitTest(point, with: event)
         } else {
             return nil
         }