Fixes #177 Settings Dialog ARIA issues Added aria-label to dialog element rather than aria-labelledby Changed invalid role of buttongroup to group on Text and Background color grouping element Still some JAWS and VoiceOver screen reader issues but NVDA works correctly and as expected
Fixes #177 Settings Dialog ARIA issues
Added aria-label to dialog element rather than aria-labelledby
Changed invalid role of buttongroup to group on Text and
Background color grouping element
Still some JAWS and VoiceOver screen reader issues
but NVDA works correctly and as expected

becka11y/readium-js-viewer,joemerante/readium-js-viewer-firefox,GermanCentralLibraryForTheBlind/readium-js-viewer,cene-co-za/readium-js-viewer,looknear/readium-js-viewer,NYULibraries/readium-js-viewer,GermanCentralLibraryForTheBlind/readium-js-viewer,kivuto/readium-js-viewer,looknear/readium-js-viewer,AndyHubert/readium-js-viewer,cene-co-za/readium-js-viewer,NYULibraries/readium-js-viewer,AndyHubert/readium-js-viewer,readium/readium-js-viewer,mrmayfield/readium,becka11y/readium-js-viewer,readium/readium-js-viewer,kivuto/readium-js-viewer,mrmayfield/readium