fix accessibility of logos
fix searchbox label
fix accessibility of file upload
add missing input labels for Share dialog
fix accessibility for 'New' file inputs
better color contrast for focused buttons
add empty alt text to decorative preview of public share image
more alt text and label fixes in Personal settings
fix accessibility for deleted files
get rid of unnecessary alt and title attributes
properly escape variable
Merge pull request #12941 from owncloud/wave-accessibility-compliance

Wave accessibility compliance