Update Lifecycle to 2.5.1.

Author: Isira-Seneviratne

app/build.gradle

@@ -97,7 +97,7 @@ android {
 ext {
     checkstyleVersion = '10.3.1'
 
-    androidxLifecycleVersion = '2.3.1'
+    androidxLifecycleVersion = '2.5.1'
     androidxRoomVersion = '2.4.2'
     androidxWorkVersion = '2.7.1'
 
@@ -203,8 +203,8 @@ dependencies {
     implementation 'androidx.core:core-ktx:1.8.0'
     implementation 'androidx.documentfile:documentfile:1.0.1'
     implementation 'androidx.fragment:fragment-ktx:1.3.6'
-    implementation "androidx.lifecycle:lifecycle-livedata:${androidxLifecycleVersion}"
-    implementation "androidx.lifecycle:lifecycle-viewmodel:${androidxLifecycleVersion}"
+    implementation "androidx.lifecycle:lifecycle-livedata-ktx:${androidxLifecycleVersion}"
+    implementation "androidx.lifecycle:lifecycle-viewmodel-ktx:${androidxLifecycleVersion}"
     implementation 'androidx.localbroadcastmanager:localbroadcastmanager:1.1.0'
     implementation 'androidx.media:media:1.6.0'
     implementation 'androidx.preference:preference:1.2.0'

app/src/main/java/org/schabi/newpipe/local/feed/FeedViewModel.kt

@@ -146,7 +146,7 @@ class FeedViewModel(
         private val groupId: Long = FeedGroupEntity.GROUP_ALL_ID
     ) : ViewModelProvider.Factory {
         @Suppress("UNCHECKED_CAST")
-        override fun <T : ViewModel?> create(modelClass: Class<T>): T {
+        override fun <T : ViewModel> create(modelClass: Class<T>): T {
             return FeedViewModel(
                 context.applicationContext,
                 groupId,

app/src/main/java/org/schabi/newpipe/local/subscription/dialog/FeedGroupDialogViewModel.kt

@@ -122,7 +122,7 @@ class FeedGroupDialogViewModel(
         private val initialShowOnlyUngrouped: Boolean = false
     ) : ViewModelProvider.Factory {
         @Suppress("UNCHECKED_CAST")
-        override fun <T : ViewModel?> create(modelClass: Class<T>): T {
+        override fun <T : ViewModel> create(modelClass: Class<T>): T {
             return FeedGroupDialogViewModel(
                 context.applicationContext,
                 groupId, initialQuery, initialShowOnlyUngrouped