Minor rewording of chapter deletion settings

app/src/main/java/eu/kanade/tachiyomi/ui/setting/SettingsDownloadController.kt

@@ -65,7 +65,7 @@ class SettingsDownloadController : SettingsController() {
             defaultValue = true
         }
         preferenceCategory {
-            titleRes = R.string.pref_remove_after_read
+            titleRes = R.string.pref_category_delete_chapters
 
             switchPreference {
                 key = Keys.removeAfterMarkedAsRead

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

@@ -311,8 +311,9 @@
       <!-- Downloads section -->
     <string name="pref_download_directory">Download location</string>
     <string name="pref_download_only_over_wifi">Only download over Wi-Fi</string>
-    <string name="pref_remove_after_marked_as_read">Remove when marked as read</string>
-    <string name="pref_remove_after_read">Remove after read</string>
+    <string name="pref_category_delete_chapters">Delete chapters</string>
+    <string name="pref_remove_after_marked_as_read">After manually marked as read</string>
+    <string name="pref_remove_after_read">After reading</string>
     <string name="custom_dir">Custom location</string>
     <string name="disabled">Disabled</string>
     <string name="last_read_chapter">Last read chapter</string>