Fixed bug in smartphone display and theme option wording

【Contents of fix】
■Fixed a bug where images inserted in the photo page were displayed twice when viewed on a smartphone.
■Changed the wording of the theme options (“Theme Options” -> “TCD Theme Options”).

The following are the files that have been modified for this update.
【Corrected files】
admin/theme-options.php
content-portfolio-main.php
languages/en.mo
languages/en.po
style.css

For more information, please visit the PHOTEK (tcd024) download site for purchasers.