All recent projects searchable in Spotlight (#1680)

* keyboard shortcut for tab switching

* extension and menu bar

* resolve swiftlint violations

* searchable in spotlight

* move function to bottom

* remove unneeded casting and add error handling

* remove CSSearchableItem type

* no success message, space between funcs, and no public func

* fix whitespace violation

CodeEdit/Features/Welcome/Views/RecentProjectsListView.swift

@@ -6,6 +6,7 @@
 //
 
 import SwiftUI
+import CoreSpotlight
 
 struct RecentProjectsListView: View {
 
@@ -25,6 +26,7 @@ struct RecentProjectsListView: View {
         let projectsURL = recentProjectPaths.map { URL(filePath: $0) }
         _selection = .init(initialValue: Set(projectsURL.prefix(1)))
         _recentProjects = .init(initialValue: projectsURL)
+        donateSearchableItems()
     }
 
     var listEmptyView: some View {
@@ -118,4 +120,22 @@ struct RecentProjectsListView: View {
         let projectsURL = recentProjectPaths.map { URL(filePath: $0) }
         recentProjects = projectsURL
     }
+
+    func donateSearchableItems() {
+        let searchableItems = recentProjects.map { entity in
+            let attributeSet = CSSearchableItemAttributeSet(contentType: .content)
+            attributeSet.title = entity.lastPathComponent
+            attributeSet.relatedUniqueIdentifier = entity.path()
+            return CSSearchableItem(
+                uniqueIdentifier: entity.path(),
+                domainIdentifier: "app.codeedit.CodeEdit.ProjectItem",
+                attributeSet: attributeSet
+            )
+        }
+        CSSearchableIndex.default().indexSearchableItems(searchableItems) { error in
+            if let error = error {
+                print(error)
+            }
+        }
+    }
 }