Virtualizer: Static and dynamic pagination

[Mitch-At-Work]

Previous Behavior

No pagination available in virtualizer (index changes would break css pagination).

New Behavior

Custom pagination for both static and dynamic virtualizers

[fabricteam]

📊 Bundle size report

Unchanged fixtures

Package & Exports	Size (minified/GZIP)
react-components react-components: Button, FluentProvider & webLightTheme	70.726 kB 20.47 kB
react-components react-components: Accordion, Button, FluentProvider, Image, Menu, Popover	217.193 kB 61.95 kB
react-components react-components: FluentProvider & webLightTheme	43.211 kB 14.303 kB
react-portal-compat PortalCompatProvider	7.94 kB 2.592 kB

_{🤖 This report was generated against cf3323ee23dee7c931f6a8860ea32810eaddcbd1}

[fabricteam]

Perf Analysis (@fluentui/react-components)

Scenario	Render type	Master Ticks	PR Ticks	Iterations	Status
FluentProviderWithTheme	virtual-rerender	66	67	10	Possible regression

All results

Scenario	Render type	Master Ticks	PR Ticks	Iterations	Status
Avatar	mount	633	621	5000
Button	mount	308	296	5000
Field	mount	1143	1120	5000
FluentProvider	mount	701	690	5000
FluentProviderWithTheme	mount	78	79	10
FluentProviderWithTheme	virtual-rerender	66	67	10	Possible regression
FluentProviderWithTheme	virtual-rerender-with-unmount	75	72	10
MakeStyles	mount	859	846	50000
Persona	mount	1712	1741	5000
SpinButton	mount	1337	1388	5000

[codesandbox-ci[bot]]

This pull request is automatically built and testable in CodeSandbox.

To see build info of the built libraries, click here or the icon next to each commit SHA.