fix: DH-22867: Fix Table Options slide animation

[vbabich]

Opening a config page in the TableOptions sidebar re-renders in a burst during the transition. The only visible effect is the skipped slide-in animation when opening the built-in Table Options pages, but this can also trigger a re-mount loop with plugin-supplied table options.

Fix:

• Track Stack views by react key instead of element identity, so equivalent-but-new child elements from a host re-render don't churn state or re-trigger the slide animation.

[codecov]

Codecov Report

❌ Patch coverage is 93.75000% with 2 lines in your changes missing coverage. Please review.
✅ Project coverage is 50.72%. Comparing base (caeabb0) to head (ea54171).

Files with missing lines	Patch %	Lines
packages/iris-grid/src/IrisGrid.tsx	0.00%	2 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #2698      +/-   ##
==========================================
+ Coverage   50.43%   50.72%   +0.28%     
==========================================
  Files         788      788              
  Lines       44909    44921      +12     
  Branches    11442    11446       +4     
==========================================
+ Hits        22652    22787     +135     
+ Misses      22238    22115     -123     
  Partials       19       19              

Flag	Coverage Δ
unit	50.72% <93.75%> (+0.28%)	⬆️

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[Copilot]

Pull request overview

This PR addresses a skipped/unstable slide-in animation in the TableOptions sidebar by making Stack navigation transitions resilient to frequent host re-renders (where “equivalent” views may be re-created as new React elements).

Changes:

• Update Stack to track the active/pushing views by React key (instead of element identity) to prevent animation/state churn during host re-renders.
• Update SlideTransition ref handling to re-read firstElementChild when in toggles so CSSTransition targets the current child DOM node at enter/exit time.

Reviewed changes

Copilot reviewed 2 out of 2 changed files in this pull request and generated 2 comments.

File	Description
packages/components/src/transitions/SlideTransition.tsx	Re-attaches the ref callback when in changes so the transition always animates the current child node.
packages/components/src/navigation/Stack.tsx	Switches Stack’s view tracking to React keys to avoid re-triggering animations on equivalent re-renders while keeping props “live”.

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[Copilot]

Pull request overview

Copilot reviewed 4 out of 4 changed files in this pull request and generated 2 comments.