Fixes incorrectly handling misc. CancellationErrors

AltStore/My Apps/MyAppsViewController.swift

@@ -1150,6 +1150,9 @@ private extension MyAppsViewController
             catch OperationError.cancelled
             {
                 // Ignore
+                DispatchQueue.main.async {
+                    installedApp.isActive = false
+                }
             }
             catch
             {
@@ -1222,6 +1225,13 @@ private extension MyAppsViewController
                 
                 print("Finished deactivating app:", app.bundleIdentifier)
             }
+            catch OperationError.cancelled
+            {
+                // Ignore
+                DispatchQueue.main.async {
+                    installedApp.isActive = true
+                }
+            }
             catch
             {
                 print("Failed to deactivate app:", error)

AltStore/Operations/BackgroundRefreshAppsOperation.swift

@@ -223,6 +223,11 @@ private extension BackgroundRefreshAppsOperation
             {
                 shouldPresentAlert = false
             }
+            catch ~OperationError.Code.serverNotFound
+            {
+                shouldPresentAlert = false
+            }
+
             catch
             {
                 print("Failed to refresh apps in background.", error)