Update standard_layout.html.twig

Check existence of admin_pool in some missing places.
Don't show filters container when no one is active or visible
Merge pull request #2449 from costyoancea/patch-1

Added missing checks for admin_pool in standard_layout.html.twig
Merge pull request #2478 from juherpin/ftr-displayable-filters

Don't show filters container when no one is active or visible
updated ignore files added idea files to ignore list
Merge branch 'sonata-master'