[@mantine/core] Popover: Set default width to max-content to reduce p…

…osition shift in some cases (#2500)

src/mantine-core/src/Popover/Popover.tsx

@@ -142,6 +142,7 @@ const defaultProps: Partial<PopoverProps> = {
   clickOutsideEvents: ['mousedown', 'touchstart'],
   zIndex: getDefaultZIndex('popover'),
   __staticSelector: 'Popover',
+  width: 'max-content',
 };
 
 export function Popover(props: PopoverProps) {

src/mantine-demos/src/demos/core/Popover/index.ts

@@ -2,5 +2,4 @@ export { usage } from './Popover.demo.usage';
 export { form } from './Popover.demo.form';
 export { hover } from './Popover.demo.hover';
 export { sameWidth } from './Popover.demo.sameWidth';
-export { arrow } from './Popover.demo.arrow';
 export { inline } from './Popover.demo.inline';