Add keep selection visible on canvas resize feature

[barinali]

Proposed Changes

This pull request aims to incorporate the "keep selection visible on canvas resize" feature from diagram-js.

While this tangible introduces the feature, this branch also includes to-be-removed commits for testing purposes.

Checklist

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  • Link to related issue(s), i.e. Closes {LINK_TO_ISSUE} or Related to {LINK_TO_ISSUE}
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  • Steps to try out, i.e. using the @bpmn-io/sr tool

[Copilot]

Pull request overview

This PR integrates the “keep selection visible on canvas resize” behavior into bpmn-js by enabling the corresponding diagram-js feature module in the interactive bundles and adding regression coverage for the expected scrolling behavior on resize.

Changes:

• Add keep-selection-visible-on-resize to NavigatedViewer and Modeler module composition.
• Add a dedicated feature spec + BPMN fixture to verify scrolling behavior when the canvas shrinks.
• Update the diagram-js dependency to a GitHub ref that includes the new feature.

Reviewed changes

Copilot reviewed 5 out of 6 changed files in this pull request and generated 1 comment.

Show a summary per file

File	Description
lib/NavigatedViewer.js	Enables the keep-selection-visible behavior for the navigated viewer bundle.
lib/Modeler.js	Enables the keep-selection-visible behavior for the modeler bundle.
test/spec/features/keep-selection-visible-on-resize/KeepSelectionVisibleOnResizeSpec.js	Adds tests covering scroll/no-scroll behavior on canvas resize with a selection.
test/spec/features/keep-selection-visible-on-resize/keep-selection-visible-on-resize.bpmn	Adds a minimal diagram fixture to position elements near edges for resize scenarios.
package.json	Points diagram-js dependency at a GitHub ref containing the feature.
package-lock.json	Updates lockfile to match the GitHub-sourced diagram-js dependency.

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[barinali]

• 48522ce needs to be removed before merging.
• @barmac do you think we need this feature for the NavigatedViewer as well? If not, a30b045 to be removed.