Use vanniktech emoji library.

...rg/briarproject/bramble/api/settings/SettingsManager.java

...rg/briarproject/bramble/settings/SettingsManagerImpl.java

briar-android/build.gradle

briar-android/proguard-rules.txt

briar-android/src/main/assets/emoji_activity.png

briar-android/src/main/assets/emoji_animals_nature.png

briar-android/src/main/assets/emoji_flags.png

briar-android/src/main/assets/emoji_food_drink.png

briar-android/src/main/assets/emoji_objects.png

briar-android/src/main/assets/emoji_smiley_people.png

briar-android/src/main/assets/emoji_symbols.png

briar-android/src/main/assets/emoji_travel_places.png

...java/org/briarproject/briar/android/AndroidComponent.java

...c/main/java/org/briarproject/briar/android/AppModule.java

.../org/briarproject/briar/android/BriarApplicationImpl.java

.../java/org/briarproject/briar/android/RecentEmojiImpl.java

...riar/android/privategroup/conversation/GroupActivity.java

...g/briarproject/briar/android/view/LargeTextInputView.java

...va/org/briarproject/briar/android/view/TextInputView.java

...thoughtcrime/securesms/components/RepeatableImageKey.java