Integrated the NewTask view into the Content view in. the app target.

App/Sources/View Models/ContentViewModel.swift

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+import SwiftData
+import SwiftUI
+
+extension ContentView {
+
+    /// View model for managing the logic for the content view.
+    ///
+    /// This observable class encapsulates the state and business logic for the main content view.
+    /// It follows the MVVM pattern to separate presentation logic from the view layer.
+    ///
+    /// The view model manages:
+    /// - Presentation state for the new task view within a sheet.
+    @Observable
+    class ViewModel {
+
+        // MARK: Properties
+
+        /// Whether the new task view should be shown.
+        var newTaskShown: Bool
+
+        // MARK: Initialization
+
+        /// Initializes a new view model instance with default values.
+        ///
+        /// The view model is initialized with:
+        /// - New task view hidden
+        init() {
+            newTaskShown = false
+        }
+
+        // MARK: Functions
+
+        /// Shows the new task view by setting the presentation state to true.
+        func showNewTask() {
+            newTaskShown = true
+        }
+
+    }
+}