Charts - Convert to TypeScript

[Mash707]

Related to #11579, the examples in the following components need to be converted to TypeScript.

• [x] ChartArea - https://github.com/patternfly/patternfly-react/pull/11721
• [x] ChartBar - https://github.com/patternfly/patternfly-react/pull/11727
• [x] ChartBoxPlot - https://github.com/patternfly/patternfly-react/pull/11728
• [x] ChartBullet - https://github.com/patternfly/patternfly-react/pull/11756 | https://github.com/patternfly/patternfly-react/pull/11758
• [x] ChartDonut - https://github.com/patternfly/patternfly-react/pull/11818
• [x] ChartDonutUtilization - https://github.com/patternfly/patternfly-react/pull/11819 | https://github.com/patternfly/patternfly-react/pull/11822
• [x] ChartLegend - https://github.com/patternfly/patternfly-react/pull/11823
• [x] ChartLine - https://github.com/patternfly/patternfly-react/pull/11824
• [ ] ChartPie
• [ ] ChartScatter
• [ ] ChartStack
• [ ] ChartTheme
• [ ] ChartThreshold
• [ ] ChartTooltip
• [ ] Patterns
• [ ] ResizeObserver
• [ ] SparkLine

I have not included Skeletons since it is in beta.

[Mash707]

@thatblindgeye each component has multiple examples.

• Should I create a single PR for each component updating all examples or one example per PR?
• The file structure should be similar to react-core i.e. each example having its own .tsx file ?

[thatblindgeye]

I'd say create 1 PR for each set of component examples. So 1 PR for ChartArea examples, etc. In the PR just make sure to link it to this issue with the "Towards" keyword rather than "Closes"

[thatblindgeye]

All sub-issues completed