Add a prop role=.search for the Tab component

[yungrari]

SwiftUI Example:

Adding a floating button to our view

In the health app example from before, there was a search button in the bottom right side of the screen. We can add a button of our own to that location by using a TabItem in our TabView that has a .search role:

Tab("Add", systemImage: "plus", value: Tabs.exercises, role: .search) {
  /* Your view */
}

While this adds a bottom to the bottom right of our view, it’s far from a solution to replacing our view-specific “Add exercise” button. A Tab that has a search role is separated from your other tabs but you’re expected to present a full screen view from this tab. So a search tab really only makes sense when your current tab bar contains a search page.

[hennessyevan]

This feature would require the new Tab API in PR #364