[Bug]: Guidance Card size is too big by default on ipad and landscape

Nobody has claimed this yet.

### Mapbox Navigation SDK version

v2.0.0-rc.4

### Steps to reproduce

# Too big

1. Run example app on iPad in landscape mode.
2. Start a navigation with guidance cards
3. Check the width of the guidance cards

# Isn't fully shown
1. Run example app on iPad in landscape mode.
2. Start a navigation with guidance cards
3. Add another app to a split screen.
3. Check the width of the guidance cards

### Expected behavior

# Case 1

The width of the guidance cards should have sensible default (max size).

# Case 2

Guidance cards just use 80% of `UIScreen.main.bounds.width`. It should take into account new iOS APIs. https://github.com/mapbox/mapbox-navigation-ios/blob/5382dc06ef592805dc17689ace4be423aa6d8ee9/Sources/MapboxNavigation/InstructionsCardViewController.swift#L60

### Actual behavior

# Case 1


# Case 2


### Is this a one-time issue or a repeatable issue?

repeatable

Start with Sources/MapboxNavigation/InstructionsCardViewController.swift around line 60, then reproduce the issue in the example app on an iPad in landscape and split-screen modes. Check the available iOS APIs for the current window size and safe area. Done means guidance cards use a sensible maximum width and fit the available split-screen width.

Written by the indexing model from the issue text.