fix: add animation for footer when keyboard display

Mastodon/Scene/Report/ReportViewController.swift

@@ -222,10 +222,16 @@ class ReportViewController: UIViewController, NeedsDependency {
             let padding = contentFrame.maxY - endFrame.minY
             guard padding > 0 else {
                 self.bottomConstraint.constant = 0.0
+                UIView.animate(withDuration: 0.33) {
+                    self.view.layoutIfNeeded()
+                }
                 return
             }
             
             self.bottomConstraint.constant = padding
+            UIView.animate(withDuration: 0.33) {
+                self.view.layoutIfNeeded()
+            }
         })
         .store(in: &disposeBag)
     }