Merge "Update battery saver footer strings" into sc-dev

    <string name="confirm_battery_saver">OK</string>

    <!-- [CHAR_LIMIT=NONE] Battery saver: Feature description, with a "learn more" link. -->

    <string name="battery_saver_description_with_learn_more">To extend battery life, Battery Saver:\n\n\u2022 Turns on Dark theme\n\u2022 Turns off or restricts background activity, some visual effects, and other features like \u201cHey Google\u201d\n\n<annotation id="url">Learn more</annotation></string>

    <string name="battery_saver_description_with_learn_more">Battery Saver turns on Dark theme and limits or turns off background activity, some visual effects, and features like \u201cHey Google\u201d\n\n<annotation id="url">Learn more</annotation></string>

    <!-- [CHAR_LIMIT=NONE] Battery saver: Feature description, without a "learn more" link. -->

    <string name="battery_saver_description">To extend battery life, Battery Saver:\n\n\u2022 Turns on Dark theme\n\u2022 Turns off or restricts background activity, some visual effects, and other features like \u201cHey Google\u201d</string>

    <string name="battery_saver_description">Battery Saver turns on Dark theme and limits or turns off background activity, some visual effects, and features like \u201cHey Google\u201d.</string>

    <!-- [CHAR_LIMIT=NONE] Data saver: Feature description -->

    <string name="data_saver_description">To help reduce data usage, Data Saver prevents some apps from sending or receiving data in the background. An app you’re currently using can access data, but may do so less frequently. This may mean, for example, that images don’t display until you tap them.</string>