Fix inconsistent input[disabled] color in Safari. Fixes #2355

[dsernst]

This is a bugfix.

Proposed solution

Safari is rendering disabled input fields with faded text.

Instead of the Bulma default #7a7a7a (48% luminosity), the input text renders at #cecece (81% luminosity).

Multiple users reported confusion, thinking the <input disabled> value= was instead placeholder= text, because it was so faded.

Bulma is already choosing to override the default <input disabled> text color.

That setting simply isn't taking effect in Safari & iOS Safari.

Screenshots of the bug (top correct, bottom incorrect):

This PR fixes it.

Tradeoffs

This adds a bit of browser-specific attributes to the codebase. A case could be made that's better handled by normalize.css.

Testing Done

Confirmed to work in production.

Changelog updated?

No.

[MartinMa]

Is there anything I can do to help this get merged? Do you think the change log should be updated as well?

[larsk2009]

Is this going to be merged at some point? This is still an issue in bulma 9.3 it seems

[henriksonnergard]

Adding to the choir, just encountered this issue in our products. Anything stopping it?

[w3sami]

how is this still unmerged, another client complaining about this