Minor cleanup

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

...main/java/de/kuschku/quasseldroid/ui/chat/input/Editor.kt

...schku/quasseldroid/ui/chat/input/MessageHistoryAdapter.kt

...e/kuschku/quasseldroid/ui/chat/messages/MessageAdapter.kt

...chku/quasseldroid/ui/chat/messages/MessageListFragment.kt

...kuschku/quasseldroid/util/ui/RipplePassthroughTextView.kt

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

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

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

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

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

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

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