fix(react-input): Remove box-shadow from Input filled appearances

[sopranopillow]

Current Behavior

Input has a box-shadow in filled appearances.

Note: I've removed the contrasting background and made the label black to differentiate the before and after.

New Behavior

Input does not have a box-shadow in filled appearances.

Note: I've removed the contrasting background and made the label black to differentiate the before and after.

Note: this is the only input control that has this box-shadow, here's a list of the files that have a box-shadow:

Related Issue(s)

Fixes #24076

[codesandbox-ci]

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.

Latest deployment of this branch, based on commit 34d2e9a:

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

[fabricteam]

📊 Bundle size report

Package & Exports	Baseline (minified/GZIP)	PR	Change
react-input Input	23.554 kB 7.644 kB	23.498 kB 7.617 kB	-56 B -27 B
react-spinbutton SpinButton	43.899 kB 12.362 kB	43.843 kB 12.336 kB	-56 B -26 B

Unchanged fixtures

Package & Exports	Size (minified/GZIP)
react-components react-components: Accordion, Button, FluentProvider, Image, Menu, Popover	188.818 kB 51.901 kB
react-components react-components: FluentProvider & webLightTheme	33.19 kB 10.921 kB

_{🤖 This report was generated against 23a0768ad4a127f31c06449ae4b8ebf0b986bc19}

[size-auditor]

Asset size changes

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

Baseline commit: 23a0768ad4a127f31c06449ae4b8ebf0b986bc19 (build)

[fabricteam]

Perf Analysis (@fluentui/react-components)

No significant results to display.

All results

Scenario	Render type	Master Ticks	PR Ticks	Iterations	Status
Avatar	mount	1282	1280	5000
Button	mount	945	927	5000
FluentProvider	mount	1482	1462	5000
FluentProviderWithTheme	mount	576	563	10
FluentProviderWithTheme	virtual-rerender	544	538	10
FluentProviderWithTheme	virtual-rerender-with-unmount	587	568	10
MakeStyles	mount	1975	1992	50000
SpinButton	mount	2331	2315	5000