Fixes #172 and #174

.../quasseldroid/ui/chat/buffers/BufferViewConfigFragment.kt

...chku/quasseldroid/ui/coresettings/CoreSettingsFragment.kt

...id/ui/coresettings/highlightlist/HighlightListFragment.kt

...c/main/java/de/kuschku/quasseldroid/util/ui/BannerView.kt

...in/java/de/kuschku/quasseldroid/util/ui/WarningBarView.kt

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

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

.../main/res/layout/widget_advertisement_support_patreon.xml

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

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

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

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