thinner add icon
improve delete and close icons
improve upload and download icons
compress view-close icon
fix paths of searchByMime results on substorages
use trash as delete icon to differentiate from close
remove metadata
Merge pull request #8352 from owncloud/icons

Icon improvements
Merge pull request #8351 from owncloud/search-mime-substorage

fix paths of searchByMime results on substorages
Also fixed the returned internal path when getting the root shared item by id
Merge branch 'master' into share-search-mime