Set LineChart Tooltip at static Y when on touch device

[envex]

What does this implement/fix?

When on a touch device we want the LineChart tooltip to always display above the chart instead of under the users finger.

[!NOTE]
Most of the changes related to the comment below are moving code around to move all the chart specific logic into the TooltipWrapper. If you think it should be split into another PR, I'm good with that.

Also as part of this PR is a the removal of the getAlteredPosition and getPosition props from the TooltipWrapper component.

We're now passing a chartType to the TooltipWrapper that will determine what special positioning needs to be done for each chart type.

This should keep all the tooltip logic in one central place instead of each chart handling the positioning in itself.

Storybook link

https://6062ad4a2d14cd0021539c1b-bgueplbuui.chromatic.com/iframe.html?args=&id=polaris-viz-charts-linechart-playground--external-tooltip&viewMode=story

• Load that story, open devtools and set the device type to Mobile

• The tooltip should always be above the chart
• The page shouldn't shift around when dragging the touch cursor over the chart

Before merging

• [ ] Check your changes on a variety of browsers and devices.

• [ ] Update the Changelog's Unreleased section with your changes.

• [ ] Update relevant documentation, tests, and Storybook.

• [ ] Make sure you're exporting any new shared Components, Types and Utilities from the top level index file of the package

[github-actions[bot]]

size-limit report 📦

Path	Size	Loading time (3g)	Running time (snapdragon)	Total time
polaris-viz-core-cjs	61.64 KB (+0.03% 🔺)	1.3 s (+0.03% 🔺)	1.2 s (+2.96% 🔺)	2.5 s
polaris-viz-cjs	223.17 KB (+0.27% 🔺)	4.5 s (+0.27% 🔺)	1.8 s (-13.04% 🔽)	6.3 s
polaris-viz-esm	180.6 KB (+0.08% 🔺)	3.7 s (+0.08% 🔺)	1.4 s (-11.11% 🔽)	5.1 s
polaris-viz-css	5.51 KB (+0.65% 🔺)	111 ms (+0.65% 🔺)	680 ms (+67.7% 🔺)	790 ms
polaris-viz-esnext	187.28 KB (+0.09% 🔺)	3.8 s (+0.09% 🔺)	1.3 s (-12.36% 🔽)	5.1 s