Changes to the valueText should also rescale ha-gauge text

[Hypfer]

Proposed change

When clicking through my energy dashboard, I sometimes noticed that the grid neutrality gauge didn't render correctly:

This happens, because ha-gauge::_rescale_svg() is only being called on a value or label update:

frontend/src/components/ha-gauge.ts

Lines 60 to 73 in f724d8e

	protected updated(changedProperties: PropertyValues) {
	super.updated(changedProperties);
	if (
	!this._updated ||
	(!changedProperties.has("value") &&
	!changedProperties.has("label") &&
	!changedProperties.has("_segment_label"))
	) {
	return;
	}
	this._angle = getAngle(this.value, this.min, this.max);
	this._segment_label = this.getSegmentLabel();
	this._rescale_svg();
	}

This works for almost all cases, however with the hui-energy-grid-neutrality-gauge-card, it breaks, because value and valueText are independent from each other.

This bug only occurs, when there are multiple days with the same grid neutrality ratio but kWh usage differing by digit count.
Otherwise, the change of the ratio also triggers the _rescale_svg()

According to the github code search, the grid neutrality gauge card is currently the only gauge where that can happen:
https://github.com/search?q=repo%3Ahome-assistant%2Ffrontend%20.valueText&type=code

These two factors are probably why it hasn't been discovered so far.

Type of change

• Dependency upgrade
• Bugfix (non-breaking change which fixes an issue)
• New feature (thank you!)
• Breaking change (fix/feature causing existing functionality to break)
• Code quality improvements to existing code or addition of tests

Example configuration

Default energy dashboard

Additional information

• This PR fixes or closes issue: N/A
• This PR is related to issue or discussion: N/A
• Link to documentation pull request: N/A

Checklist

• The code change is tested and works locally.
• There is no commented out code in this PR.
• Tests have been added to verify that the new code works.

If user exposed functionality or configuration variables are added/changed:

• Documentation added/updated for www.home-assistant.io

[karwosts]

Nice find. I believe this was reported before #19114, but never solved.