Update data help text for each route in the sidebar

[Dagonite]

Description of the issue

Each route has a data help text (presumably for the tour feature). Update these to include helpful message.

frontend/src/index.tsx

Lines 59 to 68 in 28b8982

	createRoute(
	'Reductions', // what section of the menu you want the link to be in
	'Home page', // text of the link
	'/fia', // route the link should link to
	1, // how high up in the section should your link be - ascending order
	'Data help text', // help text renders a tooltip in the site tour for this link
	false // whether the link should be visible to unauthenticated users
	);
	createRoute('Reductions', 'Instruments', '/fia/instruments', 2, 'Data help text', false);
	createRoute('Reductions', 'Reduction history', '/fia/reduction-history/ALL', 3, 'Data help text', false);