[patch] no-redundandant-roles: allow <img src="*.svg" role="img" /> #1026
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Setting role="img" is a valid use case to work around a Safari bug for better accessibility when the source image is an SVG file.
This improvement does not account for variables in the
srcattribute but adds a valid exception for when we can parse the string. In addition, add validaria-roletest for<svg role="img" />to ensure no future conflicts arise.Closes #936