When logging out, remove the scene's active account rather than the most-recently activated one, as they may not be the same

Tusker/Scenes/MainSceneDelegate.swift

@@ -211,7 +211,10 @@ class MainSceneDelegate: UIResponder, UIWindowSceneDelegate, TuskerSceneDelegate
     }
     
     func logoutCurrent() {
-        LocalData.shared.removeAccount(LocalData.shared.getMostRecentAccount()!)
+        guard let account = window?.windowScene?.session.mastodonController?.accountInfo else {
+            return
+        }
+        LocalData.shared.removeAccount(account)
         if LocalData.shared.onboardingComplete {
             activateAccount(LocalData.shared.accounts.first!, animated: false)
         } else {