Implement user avatars

app/build.gradle.kts

...n/java/de/kuschku/quasseldroid/QuasseldroidGlideModule.kt

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

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

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

...u/quasseldroid/ui/chat/messages/QuasselMessageRenderer.kt

...java/de/kuschku/quasseldroid/util/ui/SeekBarPreference.kt

...in/java/de/kuschku/quasseldroid/util/ui/TextDrawable.java

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

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

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

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

app/src/main/res/xml/preferences.xml

...e/kuschku/quasseldroid/viewmodel/data/FormattedMessage.kt