Replace restore completion string with plurals

app/src/main/java/eu/kanade/tachiyomi/data/backup/BackupNotifier.kt

@@ -137,7 +137,7 @@ internal class BackupNotifier(private val context: Context) {
 
         with(completeNotificationBuilder) {
             setContentTitle(context.getString(R.string.restore_completed))
-            setContentText(context.getString(R.string.restore_completed_content, timeString, errorCount))
+            setContentText(context.resources.getQuantityString(R.plurals.restore_completed_message, errorCount, timeString, errorCount))
 
             // Clear old actions if they exist
             if (mActions.isNotEmpty()) {

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

@@ -326,7 +326,10 @@
     <string name="backup_created">Backup created</string>
     <string name="restore_completed">Restore completed</string>
     <string name="restore_duration">%02d min, %02d sec</string>
-    <string name="restore_completed_content">Done in %1$s with %2$s errors</string>
+    <plurals name="restore_completed_message">
+        <item quantity="one">Done in %1$s with %2$s error</item>
+        <item quantity="other">Done in %1$s with %2$s errors</item>
+    </plurals>
     <string name="backup_restore_content">Restore uses sources to fetch data, carrier costs may apply.\n\nMake sure you have installed all necessary extensions and are logged in to sources and tracking services before restoring.</string>
     <string name="backup_in_progress">Backup is already in progress</string>
     <string name="backup_choice">What do you want to backup?</string>