fix: warnings raised by updating dependencies

app/build.gradle.kts

app/src/main/AndroidManifest.xml

...u/quasseldroid/service/QuasseldroidNotificationManager.kt

...main/java/de/kuschku/quasseldroid/ui/chat/ChatActivity.kt

...roid/util/ui/settings/PreferenceDialogFragmentCompat.java

...n/java/de/kuschku/quasseldroid/util/ui/view/ShadowView.kt

app/src/main/res/drawable/ic_monochrome.xml

app/src/main/res/mipmap-v26/ic_launcher.xml

...vention/src/main/kotlin/justjanne.repositories.gradle.kts

gradle/libs.versions.toml

lib/build.gradle.kts

...ava/de/kuschku/libquassel/integration/AliasManagerTest.kt

...de/kuschku/libquassel/integration/BufferViewConfigTest.kt

...e/kuschku/libquassel/integration/SampleIntegrationTest.kt

...va/de/kuschku/libquassel/integration/SignedIdNameTests.kt

...assel/protocol/primitive/serializer/BoolSerializerTest.kt

...protocol/primitive/serializer/BufferInfoSerializerTest.kt

.../protocol/primitive/serializer/ByteArraySerializerTest.kt

...assel/protocol/primitive/serializer/ByteSerializerTest.kt

...assel/protocol/primitive/serializer/CharSerializerTest.kt