Better report location for `html-self-closing`

[meowtec]

What rule do you want to change?
The html-self-closing rule currently highlights the entire element when there's an error. I suggest changing it to highlight only the closing part, like /> or </Element>.

Does this change cause the rule to produce more or fewer warnings?

How will the change be implemented? (New option, new default behavior, etc.)?
Adjust report({ loc })

Please provide some example code that this change will affect:

<template>
  <div>
    <div />
    <div></div>
  </div>
</template>

What does the rule currently do for this code?

What will the rule do after it's changed?

It will be easier to focus on the specific error.

Additional context