Android 12+ notification creation issue

[wax911]

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Description Of Bug

On android 12+ notification worker throws an exception upon notification creation with hints towards usage of pending intent flags when targetting the aforementioned API level.

Device & Build Information

• OS Version: S 12+
• App Version: N/A
• Phone Model: N/A
• Phone Brand: N/A

Donwload Source:

• Playstore
• Github
• Other (specify)

Additional Context

10-09 21:50:14:268 E/NotificationWorker(106742) : java.lang.IllegalArgumentException: com.mxt.anitrend: Targeting S+ (version 31 and above) requires that one of FLAG_IMMUTABLE or FLAG_MUTABLE be specified when creating a PendingIntent.
Strongly consider using FLAG_IMMUTABLE, only use FLAG_MUTABLE if some functionality depends on the PendingIntent being mutable, e.g. if it needs to be used with inline replies or bubbles.
	at android.app.PendingIntent.checkFlags(PendingIntent.java:375)
	at android.app.PendingIntent.getBroadcastAsUser(PendingIntent.java:651)
	at android.app.PendingIntent.getBroadcast(PendingIntent.java:638)
	at com.mxt.anitrend.util.NotificationUtil.clearNotificationsIntent(NotificationUtil.kt:56)
	at com.mxt.anitrend.util.NotificationUtil.createNotification(NotificationUtil.kt:141)
	at com.mxt.anitrend.worker.NotificationWorker.requestNotifications(NotificationWorker.kt:91)
	at com.mxt.anitrend.worker.NotificationWorker.doWork(NotificationWorker.kt:59)
	at androidx.work.CoroutineWorker$startWork$1.invokeSuspend(CoroutineWorker.kt:68)
	at kotlin.coroutines.jvm.internal.BaseContinuationImpl.resumeWith(ContinuationImpl.kt:33)
	at kotlinx.coroutines.DispatchedTask.run(DispatchedTask.kt:106)
	at kotlinx.coroutines.scheduling.CoroutineScheduler.runSafely(CoroutineScheduler.kt:570)
	at kotlinx.coroutines.scheduling.CoroutineScheduler$Worker.executeTask(CoroutineScheduler.kt:750)
	at kotlinx.coroutines.scheduling.CoroutineScheduler$Worker.runWorker(CoroutineScheduler.kt:677)
	at kotlinx.coroutines.scheduling.CoroutineScheduler$Worker.run(CoroutineScheduler.kt:664)