Changed Photo UI to have bigger icons

Signed-off-by: Michalis Vitos <info@michalisvitos.gr>
Replaced .png images at PhotoUI with .svg

Signed-off-by: Michalis Vitos <info@michalisvitos.gr>
Replaced photo button with svg

Signed-off-by: Michalis Vitos <info@michalisvitos.gr>
Some UI improvements on the PhotoUI following feedback from Gill's trip in RoC