clean up translation issues

    <!--  Text for to display on a download failure [CHAR LIMIT=NONE] -->

    <string name="download_failure">Could not download photo. Network unavailable.</string>

    <!--  Text for original image [CHAR LIMIT=20] -->

    <!--  Text to label an image as "original" [CHAR LIMIT=20] -->

    <string name="original">Original</string>

    <!--  Text for filters that apply a border to a picture [CHAR LIMIT=20] -->

    <string name="borders" msgid="4461692156695893616">Borders</string>

    <string name="kmeans">Posterize</string>

    <!--  Label for the image downsampling effect (makes image smaller) [CHAR LIMIT=15] -->

    <string name="downsample">Downsample</string>

    <!--  Label for the image graduated filter effect  [CHAR LIMIT=15] -->

    <!--  Label for the "neutral density graduated filter" filter effect  [CHAR LIMIT=15] -->

    <string name="grad">Graduated</string>

    <!--  Label for the Brightness effect  [CHAR LIMIT=20] -->

    <string name="editor_grad_brightness">Brightness</string>