Use modern jsx transform approach

src/components/icons/MiradorIcon.js

src/components/icons/RestoreZoomIcon.js

src/components/icons/ThumbnailNavigationBottomIcon.js

src/components/icons/ThumbnailNavigationRightIcon.js

src/components/icons/WindowMaxIcon.js

src/components/icons/WindowMinIcon.js

src/components/icons/WindowOptionsIcon.js

src/components/icons/WorkspaceTypeElasticIcon.js

src/components/icons/WorkspaceTypeMosaicIcon.js

src/extend/PluginContext.js

src/extend/PluginProvider.js

src/extend/withPlugins.js

src/extend/withRef.js

src/lib/MiradorViewer.js

webpack.config.js