Pattern: Missing alt for img element
Issue: -
Enforce that an img element contains the alt attribute or
role='presentation' for a decorative image. All images must have alt
text to convey their purpose and meaning to screen reader users.
Besides, the alt attribute specifies an alternate text for an image,
if the image cannot be displayed.
This rule accepts as a parameter a string array for tag names other than
img to also check. For example, if you use a custom tag named Image
then configure the rule with: [true, ['Image']].