Add grid toggle for every files view

apps/files/css/files.scss

apps/files/js/filelist.js

apps/files/lib/Controller/ViewController.php

apps/files/list.php

apps/files/recentlist.php

apps/files/simplelist.php

apps/files/templates/index.php

apps/files/templates/list.php

apps/files/templates/recentlist.php

apps/files/templates/simplelist.php

apps/files_external/list.php

apps/files_external/templates/list.php

apps/files_sharing/css/public.scss

apps/files_sharing/lib/Controller/ShareController.php

apps/files_sharing/list.php

apps/files_sharing/templates/list.php

apps/files_sharing/templates/public.php

apps/files_trashbin/list.php

apps/files_trashbin/templates/index.php