Fix primary navigation editing

ios/Sources/AppContext.swift

@@ -267,7 +267,7 @@ final class AppContext {
 
 extension PrimaryDestination: CaseIterable {
     public static var allCases: [PrimaryDestination] {
-        [.issues, .repositories, .pullRequests, .milestones, .actions, .serverActivity]
+        [.issues, .repositories, .pullRequests, .milestones, .actions]
     }
 
     var title: String {

ios/Sources/NavigationSettingsViewController.swift

@@ -27,12 +27,12 @@ final class NavigationSettingsViewController: UITableViewController {
     }
 
     override func tableView(_ tableView: UITableView, titleForHeaderInSection section: Int) -> String? {
-        section == 0 ? "Shown After Home" : "Available on Home"
+        section == 0 ? "Shown After Home" : "Available Destinations"
     }
 
     override func tableView(_ tableView: UITableView, titleForFooterInSection section: Int) -> String? {
         section == 0
-            ? "Choose up to four destinations. Tap Edit to reorder them. Home is always first."
+            ? "Tap Edit to add, remove, or reorder up to four destinations. Home is always first."
             : "Destinations not in the tab bar remain available as buttons on Home."
     }
 
@@ -49,19 +49,18 @@ final class NavigationSettingsViewController: UITableViewController {
         if indexPath.section == 1 && selected.count == 4 {
             content.textProperties.color = .secondaryLabel
             content.imageProperties.tintColor = .tertiaryLabel
-            cell.selectionStyle = .none
-        } else if indexPath.section == 1 {
-            let add = UIImageView(image: UIImage(systemName: "plus.circle.fill"))
-            add.tintColor = .tintColor
-            cell.accessoryView = add
-            cell.accessibilityHint = "Adds this destination to the tab bar"
         }
+        cell.selectionStyle = .none
         cell.contentConfiguration = content
         return cell
     }
 
+    override func tableView(_ tableView: UITableView, canEditRowAt indexPath: IndexPath) -> Bool {
+        tableView.isEditing && (indexPath.section == 0 || selected.count < 4)
+    }
+
     override func tableView(_ tableView: UITableView, canMoveRowAt indexPath: IndexPath) -> Bool {
-        indexPath.section == 0
+        tableView.isEditing && indexPath.section == 0
     }
 
     override func tableView(
@@ -93,7 +92,8 @@ final class NavigationSettingsViewController: UITableViewController {
         _ tableView: UITableView,
         editingStyleForRowAt indexPath: IndexPath
     ) -> UITableViewCell.EditingStyle {
-        indexPath.section == 0 ? .delete : .none
+        if indexPath.section == 0 { return .delete }
+        return selected.count < 4 ? .insert : .none
     }
 
     override func tableView(
@@ -101,18 +101,20 @@ final class NavigationSettingsViewController: UITableViewController {
         commit editingStyle: UITableViewCell.EditingStyle,
         forRowAt indexPath: IndexPath
     ) {
-        guard editingStyle == .delete, indexPath.section == 0 else { return }
-        selected.remove(at: indexPath.row)
+        switch (editingStyle, indexPath.section) {
+        case (.delete, 0):
+            selected.remove(at: indexPath.row)
+        case (.insert, 1) where selected.count < 4:
+            selected.append(available[indexPath.row])
+        default:
+            return
+        }
         save()
         tableView.reloadData()
     }
 
     override func tableView(_ tableView: UITableView, didSelectRowAt indexPath: IndexPath) {
         tableView.deselectRow(at: indexPath, animated: true)
-        guard indexPath.section == 1, selected.count < 4 else { return }
-        selected.append(available[indexPath.row])
-        save()
-        tableView.reloadData()
     }
 
     private func save() {