Fix lint issues, correctly sort messages

app/build.gradle.kts

...n/java/de/kuschku/quasseldroid/ui/chat/ToolbarFragment.kt

...va/de/kuschku/quasseldroid/ui/chat/input/FormatHandler.kt

.../de/kuschku/quasseldroid/ui/chat/nicks/NickListAdapter.kt

...in/java/de/kuschku/quasseldroid/ui/setup/SetupActivity.kt

...chku/quasseldroid/util/QuasseldroidNotificationManager.kt

...chku/quasseldroid/util/backport/ReadableWrappedChannel.kt

...chku/quasseldroid/util/backport/WritableWrappedChannel.kt

...java/de/kuschku/quasseldroid/util/helper/SpannedHelper.kt

...hku/quasseldroid/util/irc/format/IrcFormatDeserializer.kt

...schku/quasseldroid/util/irc/format/IrcFormatSerializer.kt

...java/de/kuschku/quasseldroid/util/quassel/IrcUserUtils.kt

...va/de/kuschku/quasseldroid/util/ui/ContextThemeWrapper.kt

...ava/de/kuschku/quasseldroid/util/ui/DrawerRecyclerView.kt

...quasseldroid/util/ui/MaterialContentLoadingProgressBar.kt

...de/kuschku/quasseldroid/util/ui/NavigationDrawerLayout.kt

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

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

app/src/main/res/layout/layout_history.xml

app/src/main/res/layout/preference_vertical.xml