feat(react-popover): adopt custom JSX pragma

[bsunderhus]

New Behavior

Adopts react-jsx-runtime custom pragma on react-popover

[codesandbox-ci]

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Latest deployment of this branch, based on commit 7200f00:

Sandbox	Source
@fluentui/react 8 starter	Configuration
@fluentui/react-components 9 starter	Configuration

[size-auditor]

Asset size changes

Size Auditor did not detect a change in bundle size for any component!

Baseline commit: bb758eb9091e5c53f8d1d58baf50505aa2aa34cc (build)

[fabricteam]

📊 Bundle size report

Package & Exports	Baseline (minified/GZIP)	PR	Change
react-components react-components: Accordion, Button, FluentProvider, Image, Menu, Popover	207.629 kB 57.6 kB	208.417 kB 57.925 kB	788 B 325 B
react-datepicker-compat DatePicker Compat	251.37 kB 67.359 kB	252.153 kB 67.645 kB	783 B 286 B
react-infobutton InfoButton	130.692 kB 39.476 kB	131.476 kB 39.787 kB	784 B 311 B
react-infobutton InfoLabel	133.988 kB 40.514 kB	134.77 kB 40.807 kB	782 B 293 B
react-popover Popover	117.611 kB 35.839 kB	117.751 kB 35.885 kB	140 B 46 B

Unchanged fixtures

Package & Exports	Size (minified/GZIP)
react-alert Alert	95.877 kB 23.104 kB
react-avatar Avatar	59.542 kB 15.569 kB
react-avatar AvatarGroup	18.19 kB 6.706 kB
react-avatar AvatarGroupItem	75.803 kB 20.072 kB
react-components react-components: Button, FluentProvider & webLightTheme	68.093 kB 18.424 kB
react-components react-components: FluentProvider & webLightTheme	38.833 kB 12.37 kB
react-persona Persona	66.568 kB 17.513 kB
react-portal-compat PortalCompatProvider	6.446 kB 2.185 kB
react-table DataGrid	150.956 kB 41.072 kB
react-table Table (Primitives only)	47.215 kB 12.749 kB
react-table Table as DataGrid	133.551 kB 33.685 kB
react-table Table (Selection only)	81.384 kB 19.67 kB
react-table Table (Sort only)	80.714 kB 19.479 kB

_{🤖 This report was generated against bb758eb9091e5c53f8d1d58baf50505aa2aa34cc}

[fabricteam]

Perf Analysis (@fluentui/react-components)

Scenario	Render type	Master Ticks	PR Ticks	Iterations	Status
InfoButton	mount	19	21	5000	Possible regression

All results

Scenario	Render type	Master Ticks	PR Ticks	Iterations	Status
Avatar	mount	701	705	5000
Button	mount	390	380	5000
Field	mount	1308	1286	5000
FluentProvider	mount	891	904	5000
FluentProviderWithTheme	mount	107	112	10
FluentProviderWithTheme	virtual-rerender	98	91	10
FluentProviderWithTheme	virtual-rerender-with-unmount	96	107	10
InfoButton	mount	19	21	5000	Possible regression
MakeStyles	mount	1121	1131	50000
Persona	mount	2022	2008	5000
SpinButton	mount	1605	1621	5000

[fabricteam]

🕵 fluentuiv9 No visual regressions between this PR and main

[bsunderhus]

I'll be waiting for #27571 before merging this PR