Button Template
No header for t3sbs_button
--- div wrap in Layout/Content/Default.html (default) but NO {class} ---
{f:if(condition: '{data.tx_t3sbootstrap_fontawesome_icon}', then: ' ')}{data.header -> f:format.raw()}
--- if is child of gridelement (button_group) - NO div wrap in Layout/Content/Default.html ---
{f:if(condition: '{data.tx_t3sbootstrap_fontawesome_icon}', then: ' ')}{data.header -> f:format.raw()}