[Tree-widget]: initial version for Tree widget consuming kiwi

[MartynasStrazdas]

Initial preview of kiwi consumption in Tree widget

Demo:
https://github.com/user-attachments/assets/4cc0d50a-6c18-4709-84e5-5a8e58f72eed

There are some known issues, such as button alignment and item selection on expander click that will be fixed later.

[grigasp]

I created a tree-widget/next branch for until the tree widget is ready for a full major release. Please re-target your PR to that.

[grigasp]

Why did lockfiles of unrelated packages changed? Can we revert those changes?

[MartynasStrazdas]

Why did lockfiles of unrelated packages changed? Can we revert those changes?

We added pnpmfile to handle itwinUI v5 peer dependency, still looking if there's a workaround of it not being in root.

[saskliutas]

Looks good. I would remove all the commented out code and props for now and track those removed features in an issue.

[MartynasStrazdas]

Why did lockfiles of unrelated packages changed? Can we revert those changes?

We added pnpmfile to handle itwinUI v5 peer dependency, still looking if there's a workaround of it not being in root.

Fixed

[saskliutas]

Why is this needed? Maybe just remove test script from tree-widget-react package.json?

[MartynasStrazdas]

Wouldn't we then need to remove it from pipeline and other places, would rather just keep it.

[saskliutas]

It runs through lage in pipeline so it should be enough to remove cover/test scripts from package.json

[saskliutas]

@grigasp I think we should disable e2e tests for this branch. At least until we reach some stability. Because I think current changes to test-viewer updates property-grid UI too (colors, font, spacing, etc).

[grigasp]

@grigasp I think we should disable e2e tests for this branch. At least until we reach some stability. Because I think current changes to test-viewer updates property-grid UI too (colors, font, spacing, etc).

I think I made them non-required check for PR, so they shouldn't prevent PR from being merged. But yeah, I agree it makes sense to just disable them for now.