AppChooserDialog should not remove URL scheme

[sersorrel]

AppChooserDialog currently truncates URLs to 40 characters for display:

xdg-desktop-portal-gtk/src/appchooserdialog.c

Lines 296 to 300 in dcbc052

	/* Ellipsize the location, keeping the suffix which is likely
	* to have more relevant information, such as filename and extension.
	*/
	static char *
	shorten_location (const char *location)

This is to avoid extremely long URLs making the window very wide – obviously this wouldn't be desirable:

but the current state of things isn't really great either; if your problem is that you lack an app for dealing with a special URL scheme, you have no idea what the scheme is:

Would truncating the string by removing characters from the middle be possible instead?

Alternatively, could the entire URL be displayed, but wrapped onto multiple lines?