This commit adds a popover to ChatPanel that contains a dropdown menu for commands and contexts. The dropdown menu can be opened by clicking on the ChatPanel's textarea. The dropdown menu contains a list of commands and contexts that can be clicked to insert them into the textarea. The popover also contains a tooltip that provides instructions on how to select code or file and right-click to access the context menu.
This commit adds the ability to track the scroll position of the chat panel and stop scrolling when the user scrolls up. It also includes a timer to automatically scroll to the bottom of the chat panel after a certain amount of time.
The ChatPanel.tsx file was moved to ChatPanel/index.tsx to better organize the project structure. The import statement for MessageUtil was also updated to reflect the new file path.
