Add drag and drop and fuzzy search to to add context

[leobaldoneto]

GitHub copilot has an great interface for quickly adding files to context, when typing # it search for files using an API similar to VS Code CTRL + E command. It prioritize open files and has an fuzzy search that use path and filename.

Also, GitHub Copilot allows us to drag and drop multiples files and folders to add context.

Both features should help a lot with the workflow.

[aydgn]

Drag-and-drop functionality can significantly speed up the process of adding context.

[Xytronix]

Drag drop functionality would really help