Enhancement: Change the SEP status style from text to a status dot

Removed the text indicator of the SEP function and replaced with a
status dot that indicate the status.

Signed-off-by: Wen Wang <wenwang@linux.vnet.ibm.com>
Bugfix: Make buttons display properly when the text is long

This patch fixes the bug that when the text of button is too long, text
will exceed the background of button.

Signed-off-by: Wen Wang <wenwang@linux.vnet.ibm.com>