Button: Update Settings text labels (#68265)

Co-authored-by: Mamaduka <mamaduka@git.wordpress.org>
Co-authored-by: t-hamano <wildworks@git.wordpress.org>

Author: Mamaduka

packages/block-library/src/button/edit.js

@@ -125,14 +125,14 @@ function WidthPanel( { selectedWidth, setAttributes } ) {
 			dropdownMenuProps={ dropdownMenuProps }
 		>
 			<ToolsPanelItem
-				label={ __( 'Button width' ) }
+				label={ __( 'Width' ) }
 				isShownByDefault
 				hasValue={ () => !! selectedWidth }
 				onDeselect={ () => setAttributes( { width: undefined } ) }
 				__nextHasNoMarginBottom
 			>
 				<ToggleGroupControl
-					label={ __( 'Button width' ) }
+					label={ __( 'Width' ) }
 					value={ selectedWidth }
 					onChange={ ( newWidth ) =>
 						setAttributes( { width: newWidth } )

test/e2e/specs/editor/blocks/buttons.spec.js

@@ -268,7 +268,7 @@ test.describe( 'Buttons', () => {
 			.getByRole( 'tab', { name: 'Settings' } )
 			.click();
 		await page
-			.getByRole( 'radiogroup', { name: 'Button width' } )
+			.getByRole( 'radiogroup', { name: 'Width' } )
 			.getByRole( 'radio', { name: '25%' } )
 			.click();