Add strings for call-to-action for patreon support

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

@@ -148,5 +148,7 @@
 
   <string name="info_copied_version">Version copied to clipboard</string>
 
+  <string name="advertisement_support_patreon">Please help support the development of this app through &lt;a href="https://www.patreon.com/justjanne"&gt;Patreon&lt;/a&gt;.</string>
+
   <string name="drag_intercept_bottom_sheet_behavior" translatable="false">de.kuschku.quasseldroid.util.ui.DragInterceptBottomSheetBehavior</string>
 </resources>