Allow hiding message types

app/build.gradle.kts

app/src/main/AndroidManifest.xml

...de/kuschku/quasseldroid_ng/persistence/AccountDatabase.kt

...chku/quasseldroid_ng/persistence/QuasselBacklogStorage.kt

...de/kuschku/quasseldroid_ng/persistence/QuasselDatabase.kt

...n/java/de/kuschku/quasseldroid_ng/ui/chat/ChatActivity.kt

...chku/quasseldroid_ng/ui/chat/buffers/BufferListAdapter.kt

...asseldroid_ng/ui/chat/buffers/BufferViewConfigFragment.kt

...u/quasseldroid_ng/ui/chat/messages/MessageListFragment.kt

.../kuschku/quasseldroid_ng/ui/viewmodel/QuasselViewModel.kt

...chku/quasseldroid_ng/util/service/ServiceBoundActivity.kt

...chku/quasseldroid_ng/util/service/ServiceBoundFragment.kt

app/src/main/res/menu/activity_main.xml

app/src/main/res/menu/setup_edit_account.xml

app/src/main/res/values/strings.xml

app/src/main/res/values/strings_messages.xml

app/src/main/res/values/strings_preferences.xml

app/src/main/res/values/themes_quassel.xml

lib/src/main/java/de/kuschku/libquassel/util/Flag.kt

lib/src/main/java/de/kuschku/libquassel/util/LongFlag.kt