Added auto optimize hint

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

@@ -158,6 +158,18 @@
             app:layout_constraintTop_toBottomOf="@id/swWatchdog"
             app:switchPadding="12dp" />
 
+        <eu.faircode.email.FixedTextView
+            android:id="@+id/tvOptimizeHint"
+            android:layout_width="0dp"
+            android:layout_height="wrap_content"
+            android:layout_marginEnd="48dp"
+            android:text="@string/title_advanced_optimize_hint"
+            android:textAppearance="@style/TextAppearance.AppCompat.Small"
+            android:textStyle="italic"
+            app:layout_constraintEnd_toEndOf="parent"
+            app:layout_constraintStart_toStartOf="parent"
+            app:layout_constraintTop_toBottomOf="@id/swOptimize" />
+
         <androidx.appcompat.widget.SwitchCompat
             android:id="@+id/swUpdates"
             android:layout_width="0dp"
@@ -167,7 +179,7 @@
             android:text="@string/title_advanced_updates"
             app:layout_constraintEnd_toEndOf="parent"
             app:layout_constraintStart_toStartOf="parent"
-            app:layout_constraintTop_toBottomOf="@id/swOptimize"
+            app:layout_constraintTop_toBottomOf="@id/tvOptimizeHint"
             app:switchPadding="12dp" />
 
         <androidx.appcompat.widget.SwitchCompat

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

@@ -514,6 +514,7 @@
 
     <string name="title_advanced_fts_hint">Enabling this improves search performance, but also increases battery and storage space usage</string>
     <string name="title_advanced_english_hint">This will restart the app</string>
+    <string name="title_advanced_optimize_hint">Enabling this can automatically change the receive settings to reduce battery usage</string>
     <string name="title_advanced_experiments_hint">List of current experimental features</string>
     <string name="title_advanced_debug_hint">Enable extra logging and show debug information at various places</string>
     <string name="title_advanced_cleanup_hint">This will delete all temporary files</string>