Build a Framework7 tab item
f7Tab(..., title = NULL, tabName, icon = NULL, active = FALSE, hidden = FALSE)
Item content.
Tab title (name).
Item id. Must be unique, without space nor punctuation symbols.
Item icon. Expect f7Icon function with the suitable lib argument (either md or ios or NULL for native f7 icons).
Whether the tab is active at start. Do not select multiple tabs, only the first one will be set to active.
Whether to hide the tab. This is useful when you want to add invisible tabs (that do not appear in the tabbar) but you can still navigate with updateF7Tabs.
David Granjon, dgranjon@ymail.com