Revert "Feed calculation logic change"

This reverts commit 2624b7dd0e07674f3639fb18618a5e11b3e9f53f.

Model/FeedModel.swift

@@ -130,9 +130,7 @@ final class FeedModel: ObservableObject, CacheModel {
                 }
 
                 let byChannel = Dictionary(grouping: unwatched) { $0.channel.id }.mapValues(\.count)
-                if self.unwatchedByChannel[account] != byChannel {
-                    self.unwatchedByChannel[account] = byChannel
-                }
+                self.unwatchedByChannel[account] = byChannel
             }
         }
     }

Model/HistoryModel.swift

@@ -107,6 +107,8 @@ extension PlayerModel {
             self.context.delete(watch)
 
             try? self.context.save()
+
+            FeedModel.shared.calculateUnwatchedFeed()
         }
     }