[FIX] toolbox menu behind thread component (#25925)

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## Issue(s)
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Add a container component to usePosition hook to prevent the menu be rendering outside the container.


Before:
<img width="686" alt="Screen Shot 2022-06-20 at 08 19 08" src="https://user-images.githubusercontent.com/9275105/174591999-15ef8f79-1064-4dd6-b9b1-acf9964b01c2.png">


After:
<img width="657" alt="Screen Shot 2022-06-22 at 10 56 19" src="https://user-images.githubusercontent.com/9275105/175048367-a45443de-9d83-40f8-a4b8-7f2c8be748c2.png">

apps/meteor/client/views/room/MessageList/components/Toolbox/MessageActionMenu.tsx

@@ -29,6 +29,8 @@ export const MessageActionMenu: FC<{
 		[key: string]: MessageActionConfigOption[];
 	};
 
+	const messagesContainer = document.querySelector('.messages-container') || document.body;
+
 	return (
 		<MessageToolboxItem
 			ref={ref}
@@ -38,7 +40,7 @@ export const MessageActionMenu: FC<{
 			data-qa-type='message-action-menu'
 		>
 			{visible && (
-				<ToolboxDropdown reference={ref} {...rest}>
+				<ToolboxDropdown reference={ref} container={messagesContainer} {...rest}>
 					{Object.entries(groupOptions).map(([, options], index, arr) => (
 						<Fragment key={index}>
 							{options.map((option) => (

apps/meteor/client/views/room/MessageList/components/Toolbox/ToolboxDropdown.tsx

@@ -14,10 +14,12 @@ const style = css`
 `;
 export const ToolboxDropdown = <R extends HTMLElement>({
 	reference,
+	container,
 	children,
 	...rest
 }: {
 	reference: React.RefObject<R>;
+	container: Element;
 	children: ReactNode;
 }): ReactElement => {
 	const { isMobile } = useLayout();
@@ -27,7 +29,7 @@ export const ToolboxDropdown = <R extends HTMLElement>({
 	return (
 		<>
 			<Box className={style} position='fixed' />
-			<DropdownTemplate ref={target} reference={reference} {...rest}>
+			<DropdownTemplate ref={target} reference={reference} container={container} {...rest}>
 				{children}
 			</DropdownTemplate>
 		</>

apps/meteor/client/views/room/MessageList/components/Toolbox/ToolboxDropdownDesktop.tsx

@@ -7,11 +7,13 @@ export const ToolboxDropdownDesktop = forwardRef<
 	{
 		reference: RefObject<HTMLElement>;
 		children: ReactNode;
+		container: Element;
 	}
->(function ToolboxDropdownDesktop({ reference, children, ...rest }, ref) {
+>(function ToolboxDropdownDesktop({ reference, container, children, ...rest }, ref) {
 	const { style: s } = usePosition(reference, ref as RefObject<HTMLElement>, {
 		watch: true,
 		placement: 'bottom-end',
+		container,
 	});
 
 	return (