Enhance image link display with selectable text and open link button

[mclemenceau]

AI Use Disclosure: This change was authored with assistance from AI. The code was reviewed, tested locally, and validated as much as possible.

Description

This pull request updates how the artifact image link is displayed in the ArtefactPageInfoSection component.
Instead of using the custom InlineUrlText widget, the image link is now shown as selectable text with an adjacent icon button that opens the link in a browser.
Additionally, the url_launcher_string package is imported to support this functionality.

This change only matter when the artifact imageUrl is not empty and allow user to select the URL and copy it instead of download the artifact systematically.

See example:

Resolved issues

• This fixes issue Download link not selectable, no option to get it into clipboard. #667

Documentation

N/A

Web service API changes

N/A

Tests

This PR was tested locally with a smoke test

[Copilot]

Pull request overview

Updates the artefact image URL presentation in the artefact details sidebar to make the link text selectable and add an explicit “open in browser” icon action, improving usability when users need to copy the URL (issue #667).

Changes:

• Replaces the InlineUrlText rendering for imageUrl with SelectableText plus an adjacent “open in new” IconButton.
• Adds a direct url_launcher_string import to open the image URL from the button.

[Copilot]

launchUrlString(artefact.imageUrl) returns a Future (and a success/failure result). As written, any failure to open the URL will be silent and the Future is ignored. Consider making the handler async, awaiting the call, and providing user feedback (e.g., SnackBar) if it fails (or checking canLaunchUrlString).

Suggested change

	onPressed: () => launchUrlString(artefact.imageUrl),
	onPressed: () async {
	try {
	final launched = await launchUrlString(artefact.imageUrl);
	if (!launched && context.mounted) {
	ScaffoldMessenger.of(context).showSnackBar(
	const SnackBar(
	content: Text('Could not open image link'),
	),
	);
	}
	} catch (_) {
	if (context.mounted) {
	ScaffoldMessenger.of(context).showSnackBar(
	const SnackBar(
	content: Text('Could not open image link'),
	),
	);
	}
	}
	},

[utkarsh2102]

good catch by copilot but looks great, thank you!

[rpbritton]

What do you think of #691? It turns out there is a native Link widget to enable selecting and right-click copy, which I think results in a cleaner implementation than this.

[rpbritton]

Having merged #691, is this PR still necessary? Even if it is no longer necessary to have separate text and link fields, I would understand if you did want them.

I think the IconButton should be replaced with a Link based widget if possible however so the right-click copy link works.

[mclemenceau]

@rpbritton I will close this for now, I can revisit later if needed. Thanks again