Add a one time popup asking for donation from long time users (#3203)

Also remove the empty "Updated to X.Y.Z" popup after app update

app/src/main/java/eu/kanade/domain/base/BasePreferences.kt

@@ -46,4 +46,9 @@ class BasePreferences(
     )
 
     val installationId: Preference<String> = preferenceStore.getString(Preference.appStateKey("installation_id"), "")
+
+    val donationCampaignShown: Preference<Boolean> = preferenceStore.getBoolean(
+        Preference.appStateKey("donation_campaign_shown"),
+        false,
+    )
 }