Unified prologue - Stats screen

[Gio2018]

Ref #15056

NOTE: this PR calculates the distance between the prologue title and the content view relative to the actual view height, and removes the Spacer above and below the SwiftUI view. As a consequence, if we follow this approach, other prologue pages need to be updated

To test:

• build/run and log out if needed
• Make sure the stats prologue screen look consistent with the designs (Prologue Carousel - Project Issue #15056). See also the example screenshots below

iPhone	iPad

PR submission checklist:

• I have completed the Regression Notes.
• I have considered adding accessibility improvements for my changes.
• I have considered if this change warrants user-facing release notes and have added them to RELEASE-NOTES.txt if necessary.

[peril-wordpress-mobile]

You can trigger an installable build for these changes by visiting CircleCI here.

[peril-wordpress-mobile]

You can trigger optional UI/connected tests for these changes by visiting CircleCI here.

[frosty]

This is looking good! If I was going to nitpick against the original designs I would say:

• The purple face icon could be a little lower and perhaps a little bigger
• The people icon could be a little bigger too
• The chart element could be a little taller (the map may want to be a little less tall to account for this)

But these are all very minor.

• Also, on iPhone 12 Pro this content view appears a little lower than the editor content view – I think because the title runs over 3 lines instead of 2. Again, this might be something we address separately.

[frosty]

I'm not 100% sure about using the main window, as this isn't very future proof if we support multiple scenes / windows in the future? Also if the window size changes (for example rotating an iPad)?

[Gio2018]

Thanks for reviewing @frosty

• The purple face icon could be a little lower and perhaps a little bigger
• The people icon could be a little bigger too
• The chart element could be a little taller (the map may want to be a little less tall to account for this)

sizes and positions changed.

• Also, on iPhone 12 Pro this content view appears a little lower than the editor content view – I think because the title runs over 3 lines instead of 2. Again, this might be something we address separately.

Agreed to fix these in a separate PR.

[frosty]

Looks good!