React charts leftovers

[damyanpetev]

Small addition to #1598 where we discarded the effect approach. Actual clean approach is with state and works just fine

  const [legend, setLegend] = useState(null);
  ...
  <IgrItemLegend ref={setLegend} />
  <IgrDoughnutChart>
          <IgrRingSeries
            legend={legend}
          ></IgrRingSeries>

https://codesandbox.io/p/devbox/brave-wescoff-mrkqy2?file=%2Fsrc%2Findex.tsx%3A38%2C9-51%2C28

[coveralls]

coverage: 86.103%. remained the same
when pulling b145245 on dpetev/react-charts-leftovers
into adf3ed8 on master.

[Copilot]

Pull request overview

This PR updates the igr-ts React chart templates to remove the previous useEffect/useRef approach and instead initialize chart data via useState, while wiring chart legends through state-set refs.

Changes:

• Replace useEffect-initialized chart data with useState(data) initialization in several chart templates.
• Replace useRef legend wiring with a state-driven legend instance set via ref.
• Add a React template-related entry to the changelog (currently mismatched with the actual PR changes).

Reviewed changes

Copilot reviewed 5 out of 5 changed files in this pull request and generated 4 comments.

Show a summary per file

File	Description
packages/cli/templates/react/igr-ts/pie-chart/default/files/src/app/path/filePrefix.tsx	Switches legend wiring to state and removes useEffect/useRef usage.
packages/cli/templates/react/igr-ts/doughnut-chart/default/files/src/app/path/filePrefix.tsx	Switches legend wiring to state and removes useEffect/useRef usage.
packages/cli/templates/react/igr-ts/financial-chart/default/files/src/app/path/filePrefix.tsx	Initializes chart data directly from useState(data) instead of an effect.
packages/cli/templates/react/igr-ts/category-chart/default/files/src/app/path/filePrefix.tsx	Initializes chart data directly from useState(data) instead of an effect.
CHANGELOG.md	Adds a React template bullet (currently describing Vite@8 rather than the chart-template changes in this PR).

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[Copilot]

Pull request overview

Copilot reviewed 5 out of 5 changed files in this pull request and generated no new comments.

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