system page: mark form dirty on state removal

Signed-off-by: Sergei Ianovich <ynvich@gmail.com>
UI: hide input fields for regular users

Signed-off-by: Sergei Ianovich <ynvich@gmail.com>
system: allow regular users to change setpoints

Signed-off-by: Sergei Ianovich <ynvich@gmail.com>
UI: align 'input-lg'

Signed-off-by: Sergei Ianovich <ynvich@gmail.com>