am a552bfde: clarify strings

    <!--  String shown when we cannot load the image when starting the activity [CHAR LIMIT=NONE] -->

    <string name="cannot_load_image">Cannot load the image!</string>

    <!--  String shown when we cannot load the original to edit [CHAR LIMIT=NONE] -->

    <!--  String shown when cannot load the original image. We will edit selected image [CHAR LIMIT=NONE] -->

    <string name="cannot_edit_original">Cannot edit original</string>

    <!--  String displayed when showing the original image [CHAR LIMIT=NONE] -->

    <string name="original_picture_text">@string/original</string>

    <string name="vignette_saturation">Saturation</string>

    <!--  Label for the image vignette contrast fparameter ui [CHAR LIMIT=15] -->

    <string name="vignette_contrast">Contrast</string>

    <!--  Label for the image vignette Falloff rate parameter ui [CHAR LIMIT=15] -->

    <!--  Label for the rate of change in brightness as it goes to the edge [CHAR LIMIT=15] -->

    <string name="vignette_falloff">Falloff</string>

    <!--  Label for the image effect that removes redeye. [CHAR LIMIT=10] -->

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

    <!-- String for brown-colored old-fashion looking filter (filtershow_fx_0000_vintage) [CHAR LIMIT=10] -->

    <string name="ffx_vintage">Vintage</string>

    <!-- String for filter that brightens colors (filtershow_fx_0001_instant) [CHAR LIMIT=10] -->

    <!-- String for filter that brightens colors like instant cameras(filtershow_fx_0001_instant) [CHAR LIMIT=10] -->

    <string name="ffx_instant">Instant</string>

    <!-- String for filter that washes out colors (filtershow_fx_0002_bleach) [CHAR LIMIT=10] -->

    <string name="ffx_bleach">Bleach</string>