[LyX features/biginset] Indicate that, by default, mouse LFUN do not require a metrics update

[Pavel Sanda]

On Mon, Nov 27, 2023 at 04:31:29PM +0100, Jean-Marc Lasgouttes wrote:
> -		{ LFUN_MOUSE_PRESS, "", ReadOnly, Hidden },
> +		{ LFUN_MOUSE_PRESS, "", ReadOnly | NoUpdate, Hidden },
...
> -		{ LFUN_MOUSE_RELEASE, "", ReadOnly, Hidden },
> +		{ LFUN_MOUSE_RELEASE, "", ReadOnly | NoUpdate, Hidden },

I know nothing about this, just thinking whether triggered DEPM or (un)collapsing
insets when clicking away should not tigger metrics update?

Pavel