Rename keyboard rows consistently

java/res/xml-sw600dp/kbd_rows_qwerty.xml

java/res/xml-sw600dp/kbd_rows_qwertz.xml

java/res/xml-sw600dp/kbd_rows_russian.xml

java/res/xml-sw600dp/kbd_rows_scandinavian.xml

java/res/xml-sw600dp/kbd_rows_serbian.xml

java/res/xml-sw768dp/kbd_rows_arabic.xml

java/res/xml-sw768dp/kbd_rows_azerty.xml

java/res/xml-sw768dp/kbd_rows_hebrew.xml

java/res/xml-sw768dp/kbd_rows_qwerty.xml

java/res/xml-sw768dp/kbd_rows_qwertz.xml

java/res/xml-sw768dp/kbd_rows_russian.xml

java/res/xml-sw768dp/kbd_rows_scandinavian.xml

java/res/xml-sw768dp/kbd_rows_serbian.xml

java/res/xml/kbd_qwerty.xml

java/res/xml/kbd_rows_arabic.xml

java/res/xml/kbd_rows_azerty.xml

java/res/xml/kbd_rows_hebrew.xml

java/res/xml/kbd_rows_qwerty.xml

java/res/xml/kbd_rows_qwertz.xml

java/res/xml/kbd_rows_russian.xml