feat(desktop): implement native desktop notifications for task completion and errors (#1293)

ui/flutter/android/app/build.gradle

@@ -28,6 +28,7 @@ android {
     ndkVersion flutter.ndkVersion
 
     compileOptions {
+        coreLibraryDesugaringEnabled true
         sourceCompatibility JavaVersion.VERSION_17
         targetCompatibility JavaVersion.VERSION_17
     }
@@ -83,4 +84,5 @@ flutter {
 
 dependencies {
     implementation(name: 'libgopeed', ext: 'aar')
+    coreLibraryDesugaring 'com.android.tools:desugar_jdk_libs:2.1.4'
 }