1912214 - Use HTMLTooltip for InvalidAtComputedValueTime error message

Status: NEW

(DevTools :: Inspector: Rules, task)

Description

[Nicolas Chevobbe [:nchevobbe]]

At the moment, we show the message in a simple title attribute, which isn't the best https://searchfox.org/mozilla-central/rev/0c55d51c0d2a9b672e42ad40ea54f90267f92a8e/devtools/client/inspector/rules/views/text-property-editor.js#906-909

this.invalidAtComputedValueTimeWarning.title = l10nFormatStr(
  "rule.warningInvalidAtComputedValueTime.title",
  `"${this.prop.getExpectedSyntax()}"`
);

displaying it in an HTML tooltip will make it more visible and allow us to add nicer styling