Sync with react.dev @ 1207ee3

Bumps [react-server-dom-webpack](https://github.com/facebook/react/tree/HEAD/packages/react-server-dom-webpack) from 19.2.4 to 19.2.5.
- [Release notes](https://github.com/facebook/react/releases)
- [Changelog](https://github.com/facebook/react/blob/main/CHANGELOG.md)
- [Commits](https://github.com/facebook/react/commits/v19.2.5/packages/react-server-dom-webpack)

---
updated-dependencies:
- dependency-name: react-server-dom-webpack
  dependency-version: 19.2.5
  dependency-type: direct:development
...

Signed-off-by: dependabot[bot] <support@github.com>

…rver-dom-webpack-19.2.5

Bump react-server-dom-webpack from 19.2.4 to 19.2.5

Bumps [next](https://github.com/vercel/next.js) from 15.5.14 to 15.5.15.
- [Release notes](https://github.com/vercel/next.js/releases)
- [Changelog](https://github.com/vercel/next.js/blob/canary/release.js)
- [Commits](vercel/next.js@v15.5.14...v15.5.15)

---
updated-dependencies:
- dependency-name: next
  dependency-version: 15.5.15
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <support@github.com>

…5.15

Bump next from 15.5.14 to 15.5.15

Translates the complete isValidElement page including:
- Intro, parameters, return values, and caveats sections
- Usage examples with Turkish descriptions
- Deep dive section on React elements vs React nodes

Consistent with existing Turkish translation style used in
createElement.md and cloneElement.md pages.

Related to #397

Translates the complete PureComponent page including:
- Intro and pitfall warnings
- Reference section
- Usage section with interactive Sandpack examples
- Alternatives section (migrating to function components with memo)
- Note about memo vs PureComponent behavior differences

Consistent with existing Turkish translation style.

Related to #397

Translates the complete Component page (1956 lines) including:
- All class component APIs (constructor, render, setState, forceUpdate)
- All lifecycle methods (componentDidMount, componentDidUpdate,
  componentWillUnmount, shouldComponentUpdate, getSnapshotBeforeUpdate)
- All UNSAFE lifecycle methods with deprecation notices
- Static methods (contextType, defaultProps, getDerivedStateFromError,
  getDerivedStateFromProps)
- Usage section with interactive Sandpack examples
- Alternatives section (migration guides for simple, state, lifecycle,
  and context components)
- Error Boundary section

Code examples and Sandpack demos preserved as-is.
Consistent with existing Turkish translation conventions.

Related to #397

Translate isValidElement page to Turkish

Translate Component page to Turkish