feat(react-overflow): add pinned items

[layershifter]

Previous Behavior

• Functionality of pinned items was implemented with priority
• Items with high priority could still overflow

New Behavior

• New pinned prop is added. Pinned items can't have priority and don't overflow even if it results in broken layout
• New E2E tests added, the matching story was modified
• Changes confirmed to work as expected by an engineer on product side

[github-actions]

📊 Bundle size report

Package & Exports	Baseline (minified/GZIP)	PR	Change
priority-overflow createOverflowManager	4.457 kB 1.832 kB	4.584 kB 1.873 kB	127 B 41 B
react-charts AreaChart	406.774 kB 124.49 kB	406.925 kB 124.542 kB	151 B 52 B
react-charts DeclarativeChart	756.608 kB 217.661 kB	756.759 kB 217.708 kB	151 B 47 B
react-charts DonutChart	317.215 kB 94.424 kB	317.366 kB 94.473 kB	151 B 49 B
react-charts FunnelChart	308.768 kB 91.344 kB	308.919 kB 91.391 kB	151 B 47 B
react-charts GanttChart	389.883 kB 118.07 kB	390.034 kB 118.117 kB	151 B 47 B
react-charts GaugeChart	316.646 kB 93.823 kB	316.797 kB 93.872 kB	151 B 49 B
react-charts GroupedVerticalBarChart	397.761 kB 120.655 kB	397.912 kB 120.703 kB	151 B 48 B
react-charts HeatMapChart	391.964 kB 119.781 kB	392.115 kB 119.833 kB	151 B 52 B
react-charts HorizontalBarChart	296.942 kB 86.031 kB	297.093 kB 86.082 kB	151 B 51 B
react-charts Legends	235.853 kB 69.37 kB	236.004 kB 69.415 kB	151 B 45 B
react-charts LineChart	417.336 kB 126.416 kB	417.487 kB 126.47 kB	151 B 54 B
react-charts PolarChart	345.826 kB 105.448 kB	345.977 kB 105.494 kB	151 B 46 B
react-charts ScatterChart	397.163 kB 120.567 kB	397.314 kB 120.631 kB	151 B 64 B
react-charts VerticalBarChart	434.238 kB 126.136 kB	434.389 kB 126.193 kB	151 B 57 B
react-charts VerticalStackedBarChart	403.675 kB 121.505 kB	403.826 kB 121.545 kB	151 B 40 B
react-components react-components: entire library	1.291 MB 322.995 kB	1.292 MB 323.051 kB	151 B 56 B
react-overflow hooks only	11.977 kB 4.574 kB	12.117 kB 4.627 kB	140 B 53 B

Unchanged fixtures

Package & Exports	Size (minified/GZIP)
react-breadcrumb @fluentui/react-breadcrumb - package	114.872 kB 31.386 kB
react-charts HorizontalBarChartWithAxis	63 B 83 B
react-charts SankeyChart	213.881 kB 65.62 kB
react-charts Sparkline	91.393 kB 28.708 kB
react-components react-components: Button, FluentProvider & webLightTheme	70.224 kB 19.89 kB
react-components react-components: Accordion, Button, FluentProvider, Image, Menu, Popover	237.179 kB 68.482 kB
react-components react-components: FluentProvider & webLightTheme	43.523 kB 13.978 kB
react-portal-compat PortalCompatProvider	8.386 kB 2.624 kB
react-timepicker-compat TimePicker	108.15 kB 35.693 kB

_{🤖 This report was generated against 31c5eb7c476e7cfe8ef3b172d20357684cf6b101}

[github-actions]

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