System notices to core, remove settings

settings/.gitignore

settings/build.gradle

settings/consumer-rules.pro

settings/proguard-rules.pro

...java/org/futo/circles/settings/ExampleInstrumentedTest.kt

settings/src/main/AndroidManifest.xml

.../java/org/futo/circles/settings/model/ConfirmationType.kt

settings/src/main/res/values-night/colors.xml

settings/src/main/res/values/colors.xml

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

settings/src/main/res/values/styles.xml

...rc/test/java/org/futo/circles/settings/ExampleUnitTest.kt