fix(WidgetManager): handle touch support

[floryst]

Context

• Touch widget support is broken. Related: https://discourse.vtk.org/t/reslicecursorwidget-does-not-operate-the-cross-selector-normally-on-the-mobile-touch-screen/8743/8
• Multiple widget managers cause freezes. Related: Tab main thread freezes when using multiple renderers with widget manager #2435, Enabling picking on a vtkWidgetManager drops the frame count to 5 on simple mouse moves #2438

FYI @finetjul. I'm still investigating, but here is something that might work.

Results

• touch should work on widgets
• multiple widget managers should not freeze

Changes

• Documentation and TypeScript definitions were updated to match those changes

PR and Code Checklist

• semantic-release commit messages
• Run npm run reformat to have correctly formatted code

Testing

• Tested widgets:
  • polyline widget with an orientation marker widget

[finetjul]

LGTM

[floryst]

There is still a performance issue when multiple widget managers exist in a render window.

[floryst]

Some of the performance issues stem from #2484. I have a fix for that, which should benefit this PR.

Update: that performance gain was only for a very specific test. Still getting some slowness with multiple widget managers.

[floryst]

I think this is good to go. I've tested this on a Chromium-based browser on a smartphone using a polyline wiget example that has been modified to include the orientation marker widget.

[floryst]

I've updated the PR with the following changes:

• event handlers now return macro.VOID. handleEvent doesn't since it's async, so I opted to wrap the call to handleEvent in a separate function.
• model._currentUpdateSelectionCallID is used to only allow the most recent updateSelection call to be processed.

[floryst]

@finetjul can I get one more review? I'm set with this implementation, since it should work without getting into the weeds on asyncifying the event handling.

[finetjul]

LGTM

[github-actions]

🎉 This PR is included in version 25.8.2 🎉

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[juan-crypto-bot]

Hello, I have a stl file that renders and when I add a widget the movement is frozen, I can't move the stl file and zoom it.
I try widgetManager.disablePicking(), widgetManager.delete() and it still does not work.