Revert "Replace deprecated NotificationGroup"

This reverts commit ee1ecb6.

Author: rohithsh

dev-assist/build.gradle

@@ -13,8 +13,7 @@ repositories {
 
 dependencies {
     implementation 'com.googlecode.json-simple:json-simple:1.1'
-//    implementation 'de.fraunhofer.iem:swan:3.2.2'
-    implementation files("/Users/rohith/Downloads/swan 4.jar")
+    implementation 'de.fraunhofer.iem:swan:3.2.2'
     implementation 'org.slf4j:slf4j-api:1.7.29'
     implementation 'org.slf4j:slf4j-simple:1.7.29'
     implementation 'org.apache.commons:commons-lang3:3.0'