Change class of "ALT" tag to make it blockable

[mcclure]

Steps to reproduce the problem

A recent change added a "ALT" badge to all images with alt text. I personally find this annoying¹.

I would like to use a CSS userstyle to remove the "alt" badge on my personal machine. However, there is a problem: The alt badge uses class .media-gallery__gifv__label. This means I cannot block the "alt" badge without also blocking the "gif" badge (which I find useful). The userstyle I wrote therefore is awkward and brittle (if the layout changes significantly it will stop working, and it does not work on Firefox without special settings) because it has to indirectly intuit which of the badges is the ALT one.

Expected behaviour

Reserve .media-gallery__gifv__label for the GIF label and use .media-gallery__altv__label or something for the alt label.

Detailed description

This will not create problems for people that want to create custom styles for all image badges because they can just use .media-gallery__item__badges span.

Specifications

mastodon.social ( v4.1.2+nightly-20230508) on current chrome

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¹ The reasons I dislike the alt badge are probably not relevant because I am not requesting it be removed, only that it get a CSS class so it can be hidden / custom-styled on individual machines. But, the alt badge bothers me for two reasons; One, I feel like you are penalizing me for including alt text in my images, by partially obscuring the images (with a banner that, while small, may cover up content such as text). Two, I find the "alt" badge distracting to look at. If the alt badge were an interactive element as it is in some websites/apps, this would justify it better, but I would still personally want to hide it.